ASSY^® 4 WH washer head screw Steel zinc plated partial thread washer head

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ASSY^® 4 WH washer head screw Steel zinc plated partial thread washer head

Partial-thread screw with large washer head washer head for wood-wood fastening in a structural wood construction which must be pulled together in indoor dry or sheltered areas

Head type: Round washer head
Thread type: Wood screw thread
Thread design: Partial thread
Thread form: Coarse thread
Shape of tip: Tip with hilltop milling cutter
Angle of the tip: 34 Degree
Material: Hardened steel
Surface: Zinc plated

Colour: Silver

Max. screw-in angle: 90 Degree

Min. screw-in angle: 0 Degree

Suitable for use in the following materials: Wood, Derived timber product, Softwood, Board ply wood (BSP), Hardwood, LVL

Approval: ETA-11/0190

RoHS-compliant: Yes

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Available in 90 versions

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Exclusively for trade customers

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Variants

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Art.-no.

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Art.-no.	Nominal diameter	Length	Thread length (lg)	Head diameter	Quantity	Attributes	PU	Price/PU *
0177350100	5 mm	100 mm	52 mm	12 mm		Nominal diameter 5 mm Length 100 mm Thread length (lg) 52 mm Head diameter 12 mm	100 pcs
0177350110	5 mm	110 mm	52 mm	12 mm		Nominal diameter 5 mm Length 110 mm Thread length (lg) 52 mm Head diameter 12 mm	100 pcs
0177350120	5 mm	120 mm	62 mm	12 mm		Nominal diameter 5 mm Length 120 mm Thread length (lg) 62 mm Head diameter 12 mm	100 pcs
017735030	5 mm	30 mm	20 mm	12 mm		Nominal diameter 5 mm Length 30 mm Thread length (lg) 20 mm Head diameter 12 mm	100 pcs
017735035	5 mm	35 mm	20 mm	12 mm		Nominal diameter 5 mm Length 35 mm Thread length (lg) 20 mm Head diameter 12 mm	100 pcs
017735040	5 mm	40 mm	25 mm	12 mm		Nominal diameter 5 mm Length 40 mm Thread length (lg) 25 mm Head diameter 12 mm	100 pcs
017735045	5 mm	45 mm	30 mm	12 mm		Nominal diameter 5 mm Length 45 mm Thread length (lg) 30 mm Head diameter 12 mm	100 pcs
017735050	5 mm	50 mm	30 mm	12 mm		Nominal diameter 5 mm Length 50 mm Thread length (lg) 30 mm Head diameter 12 mm	100 pcs
017735060	5 mm	60 mm	37 mm	12 mm		Nominal diameter 5 mm Length 60 mm Thread length (lg) 37 mm Head diameter 12 mm	100 pcs
017735070	5 mm	70 mm	42 mm	12 mm		Nominal diameter 5 mm Length 70 mm Thread length (lg) 42 mm Head diameter 12 mm	100 pcs
017735080	5 mm	80 mm	42 mm	12 mm		Nominal diameter 5 mm Length 80 mm Thread length (lg) 42 mm Head diameter 12 mm	100 pcs
017735090	5 mm	90 mm	47 mm	12 mm		Nominal diameter 5 mm Length 90 mm Thread length (lg) 47 mm Head diameter 12 mm	100 pcs
0177360100	6 mm	100 mm	60 mm	14 mm		Nominal diameter 6 mm Length 100 mm Thread length (lg) 60 mm Head diameter 14 mm	100 pcs
0177360110	6 mm	110 mm	70 mm	14 mm		Nominal diameter 6 mm Length 110 mm Thread length (lg) 70 mm Head diameter 14 mm	100 pcs
0177360120	6 mm	120 mm	70 mm	14 mm		Nominal diameter 6 mm Length 120 mm Thread length (lg) 70 mm Head diameter 14 mm	100 pcs
0177360140	6 mm	140 mm	70 mm	14 mm		Nominal diameter 6 mm Length 140 mm Thread length (lg) 70 mm Head diameter 14 mm	100 pcs
0177360160	6 mm	160 mm	70 mm	14 mm		Nominal diameter 6 mm Length 160 mm Thread length (lg) 70 mm Head diameter 14 mm	100 pcs
0177360180	6 mm	180 mm	70 mm	14 mm		Nominal diameter 6 mm Length 180 mm Thread length (lg) 70 mm Head diameter 14 mm	100 pcs
0177360200	6 mm	200 mm	70 mm	14 mm		Nominal diameter 6 mm Length 200 mm Thread length (lg) 70 mm Head diameter 14 mm	100 pcs
0177360220	6 mm	220 mm	70 mm	14 mm		Nominal diameter 6 mm Length 220 mm Thread length (lg) 70 mm Head diameter 14 mm	100 pcs
0177360240	6 mm	240 mm	70 mm	14 mm		Nominal diameter 6 mm Length 240 mm Thread length (lg) 70 mm Head diameter 14 mm	100 pcs
0177360260	6 mm	260 mm	70 mm	14 mm		Nominal diameter 6 mm Length 260 mm Thread length (lg) 70 mm Head diameter 14 mm	100 pcs
0177360280	6 mm	280 mm	70 mm	14 mm		Nominal diameter 6 mm Length 280 mm Thread length (lg) 70 mm Head diameter 14 mm	100 pcs
0177360300	6 mm	300 mm	70 mm	14 mm		Nominal diameter 6 mm Length 300 mm Thread length (lg) 70 mm Head diameter 14 mm	100 pcs
017736060	6 mm	60 mm	37 mm	14 mm		Nominal diameter 6 mm Length 60 mm Thread length (lg) 37 mm Head diameter 14 mm	100 pcs
017736070	6 mm	70 mm	42 mm	14 mm		Nominal diameter 6 mm Length 70 mm Thread length (lg) 42 mm Head diameter 14 mm	100 pcs
017736080	6 mm	80 mm	50 mm	14 mm		Nominal diameter 6 mm Length 80 mm Thread length (lg) 50 mm Head diameter 14 mm	100 pcs
017736090	6 mm	90 mm	50 mm	14 mm		Nominal diameter 6 mm Length 90 mm Thread length (lg) 50 mm Head diameter 14 mm	100 pcs
0177380100	8 mm	100 mm	60 mm	22.1 mm		Nominal diameter 8 mm Length 100 mm Thread length (lg) 60 mm Head diameter 22.1 mm	50 pcs
0177380120	8 mm	120 mm	80 mm	22.1 mm		Nominal diameter 8 mm Length 120 mm Thread length (lg) 80 mm Head diameter 22.1 mm	50 pcs
0177380140	8 mm	140 mm	80 mm	22.1 mm		Nominal diameter 8 mm Length 140 mm Thread length (lg) 80 mm Head diameter 22.1 mm	50 pcs
0177380160	8 mm	160 mm	80 mm	22.1 mm		Nominal diameter 8 mm Length 160 mm Thread length (lg) 80 mm Head diameter 22.1 mm	50 pcs
0177380180	8 mm	180 mm	80 mm	22.1 mm		Nominal diameter 8 mm Length 180 mm Thread length (lg) 80 mm Head diameter 22.1 mm	50 pcs
0177380200	8 mm	200 mm	80 mm	22.1 mm		Nominal diameter 8 mm Length 200 mm Thread length (lg) 80 mm Head diameter 22.1 mm	50 pcs
0177380220	8 mm	220 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 220 mm Thread length (lg) 100 mm Head diameter 22.1 mm	50 pcs
0177380240	8 mm	240 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 240 mm Thread length (lg) 100 mm Head diameter 22.1 mm	50 pcs
0177380260	8 mm	260 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 260 mm Thread length (lg) 100 mm Head diameter 22.1 mm	50 pcs
0177380280	8 mm	280 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 280 mm Thread length (lg) 100 mm Head diameter 22.1 mm	50 pcs
0177380300	8 mm	300 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 300 mm Thread length (lg) 100 mm Head diameter 22.1 mm	50 pcs
0177380320	8 mm	320 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 320 mm Thread length (lg) 100 mm Head diameter 22.1 mm	50 pcs
0177380340	8 mm	340 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 340 mm Thread length (lg) 100 mm Head diameter 22.1 mm	50 pcs
0177380360	8 mm	360 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 360 mm Thread length (lg) 100 mm Head diameter 22.1 mm	50 pcs
0177380380	8 mm	380 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 380 mm Thread length (lg) 100 mm Head diameter 22.1 mm	50 pcs
0177380400	8 mm	400 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 400 mm Thread length (lg) 100 mm Head diameter 22.1 mm	50 pcs
0177380420	8 mm	420 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 420 mm Thread length (lg) 100 mm Head diameter 22.1 mm	50 pcs
0177380440	8 mm	440 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 440 mm Thread length (lg) 100 mm Head diameter 22.1 mm	50 pcs
0177380460	8 mm	460 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 460 mm Thread length (lg) 100 mm Head diameter 22.1 mm	25 pcs
0177380480	8 mm	480 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 480 mm Thread length (lg) 100 mm Head diameter 22.1 mm	25 pcs
0177380500	8 mm	500 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 500 mm Thread length (lg) 100 mm Head diameter 22.1 mm	25 pcs
0177380520	8 mm	520 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 520 mm Thread length (lg) 100 mm Head diameter 22.1 mm	25 pcs
0177380540	8 mm	540 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 540 mm Thread length (lg) 100 mm Head diameter 22.1 mm	25 pcs
0177380560	8 mm	560 mm	100 mm	22.1 mm		Nominal diameter 8 mm Length 560 mm Thread length (lg) 100 mm Head diameter 22.1 mm	25 pcs
017738080	8 mm	80 mm	50 mm	22.1 mm		Nominal diameter 8 mm Length 80 mm Thread length (lg) 50 mm Head diameter 22.1 mm	50 pcs
0177310100	10 mm	100 mm	60 mm	25.2 mm		Nominal diameter 10 mm Length 100 mm Thread length (lg) 60 mm Head diameter 25.2 mm	50 pcs
0177310120	10 mm	120 mm	80 mm	25.2 mm		Nominal diameter 10 mm Length 120 mm Thread length (lg) 80 mm Head diameter 25.2 mm	50 pcs
0177310140	10 mm	140 mm	80 mm	25.2 mm		Nominal diameter 10 mm Length 140 mm Thread length (lg) 80 mm Head diameter 25.2 mm	50 pcs
0177310160	10 mm	160 mm	100 mm	25.2 mm		Nominal diameter 10 mm Length 160 mm Thread length (lg) 100 mm Head diameter 25.2 mm	50 pcs
0177310180	10 mm	180 mm	100 mm	25.2 mm		Nominal diameter 10 mm Length 180 mm Thread length (lg) 100 mm Head diameter 25.2 mm	50 pcs
0177310200	10 mm	200 mm	100 mm	25.2 mm		Nominal diameter 10 mm Length 200 mm Thread length (lg) 100 mm Head diameter 25.2 mm	50 pcs
0177310220	10 mm	220 mm	100 mm	25.2 mm		Nominal diameter 10 mm Length 220 mm Thread length (lg) 100 mm Head diameter 25.2 mm	50 pcs
0177310240	10 mm	240 mm	100 mm	25.2 mm		Nominal diameter 10 mm Length 240 mm Thread length (lg) 100 mm Head diameter 25.2 mm	50 pcs
0177310260	10 mm	260 mm	100 mm	25.2 mm		Nominal diameter 10 mm Length 260 mm Thread length (lg) 100 mm Head diameter 25.2 mm	50 pcs
0177310280	10 mm	280 mm	100 mm	25.2 mm		Nominal diameter 10 mm Length 280 mm Thread length (lg) 100 mm Head diameter 25.2 mm	50 pcs
0177310300	10 mm	300 mm	100 mm	25.2 mm		Nominal diameter 10 mm Length 300 mm Thread length (lg) 100 mm Head diameter 25.2 mm	50 pcs
0177310320	10 mm	320 mm	120 mm	25.2 mm		Nominal diameter 10 mm Length 320 mm Thread length (lg) 120 mm Head diameter 25.2 mm	50 pcs
0177310340	10 mm	340 mm	120 mm	25.2 mm		Nominal diameter 10 mm Length 340 mm Thread length (lg) 120 mm Head diameter 25.2 mm	50 pcs
0177310360	10 mm	360 mm	120 mm	25.2 mm		Nominal diameter 10 mm Length 360 mm Thread length (lg) 120 mm Head diameter 25.2 mm	50 pcs
0177310380	10 mm	380 mm	120 mm	25.2 mm		Nominal diameter 10 mm Length 380 mm Thread length (lg) 120 mm Head diameter 25.2 mm	50 pcs
0177310400	10 mm	400 mm	120 mm	25.2 mm		Nominal diameter 10 mm Length 400 mm Thread length (lg) 120 mm Head diameter 25.2 mm	50 pcs
0177310420	10 mm	420 mm	120 mm	25.2 mm		Nominal diameter 10 mm Length 420 mm Thread length (lg) 120 mm Head diameter 25.2 mm	25 pcs
0177310440	10 mm	440 mm	120 mm	25.2 mm		Nominal diameter 10 mm Length 440 mm Thread length (lg) 120 mm Head diameter 25.2 mm	25 pcs
0177310460	10 mm	460 mm	120 mm	25.2 mm		Nominal diameter 10 mm Length 460 mm Thread length (lg) 120 mm Head diameter 25.2 mm	25 pcs
0177310480	10 mm	480 mm	120 mm	25.2 mm		Nominal diameter 10 mm Length 480 mm Thread length (lg) 120 mm Head diameter 25.2 mm	25 pcs
0177310500	10 mm	500 mm	120 mm	25.2 mm		Nominal diameter 10 mm Length 500 mm Thread length (lg) 120 mm Head diameter 25.2 mm	25 pcs
017731080	10 mm	80 mm	50 mm	25.2 mm		Nominal diameter 10 mm Length 80 mm Thread length (lg) 50 mm Head diameter 25.2 mm	50 pcs
0177312200	12 mm	200 mm	100 mm	29.4 mm		Nominal diameter 12 mm Length 200 mm Thread length (lg) 100 mm Head diameter 29.4 mm	25 pcs
0177312220	12 mm	220 mm	120 mm	29.4 mm		Nominal diameter 12 mm Length 220 mm Thread length (lg) 120 mm Head diameter 29.4 mm	25 pcs
0177312240	12 mm	240 mm	120 mm	29.4 mm		Nominal diameter 12 mm Length 240 mm Thread length (lg) 120 mm Head diameter 29.4 mm	25 pcs
0177312260	12 mm	260 mm	120 mm	29.4 mm		Nominal diameter 12 mm Length 260 mm Thread length (lg) 120 mm Head diameter 29.4 mm	25 pcs
0177312280	12 mm	280 mm	120 mm	29.4 mm		Nominal diameter 12 mm Length 280 mm Thread length (lg) 120 mm Head diameter 29.4 mm	25 pcs
0177312300	12 mm	300 mm	120 mm	29.4 mm		Nominal diameter 12 mm Length 300 mm Thread length (lg) 120 mm Head diameter 29.4 mm	25 pcs
0177312320	12 mm	320 mm	120 mm	29.4 mm		Nominal diameter 12 mm Length 320 mm Thread length (lg) 120 mm Head diameter 29.4 mm	25 pcs
0177312340	12 mm	340 mm	120 mm	29.4 mm		Nominal diameter 12 mm Length 340 mm Thread length (lg) 120 mm Head diameter 29.4 mm	25 pcs
0177312360	12 mm	360 mm	120 mm	29.4 mm		Nominal diameter 12 mm Length 360 mm Thread length (lg) 120 mm Head diameter 29.4 mm	25 pcs
0177312380	12 mm	380 mm	145 mm	29.4 mm		Nominal diameter 12 mm Length 380 mm Thread length (lg) 145 mm Head diameter 29.4 mm	25 pcs
0177312400	12 mm	400 mm	145 mm	29.4 mm		Nominal diameter 12 mm Length 400 mm Thread length (lg) 145 mm Head diameter 29.4 mm	25 pcs
0177312440	12 mm	440 mm	145 mm	29.4 mm		Nominal diameter 12 mm Length 440 mm Thread length (lg) 145 mm Head diameter 29.4 mm	25 pcs
0177312480	12 mm	480 mm	145 mm	29.4 mm		Nominal diameter 12 mm Length 480 mm Thread length (lg) 145 mm Head diameter 29.4 mm	25 pcs
0177312520	12 mm	520 mm	145 mm	29.4 mm		Nominal diameter 12 mm Length 520 mm Thread length (lg) 145 mm Head diameter 29.4 mm	25 pcs
017738060	8 mm	60 mm	50 mm	22.1 mm		Nominal diameter 8 mm Length 60 mm Thread length (lg) 50 mm Head diameter 22.1 mm	50 pcs

* Individual prices for customers after login

Description
Usage

Description

Ideal power transmission thanks to RW drive

More power due to larger contact area at the bit

More stability, one-handed working, precise positioning due to the tight-fit recess and perfect fit of the bit

Fewer bit changes, one bit for many screw diameters

Compatibility with previous AW drive

Visually appealing screw connection on wood surface

Very high head pull-through values and strong tightening effect thanks to a large head diameter

Significant reduction in the amount of force required when fastening in the screw

Less splitting when immersing the shank due to the displacement milling effect of the milling shank

Minimised risk of screw breakage due to high breaking torque

Reduced risk of injury from protruding metal chips due to the integration of the milling shank into the thread

High protection of the application tools

No over-tightening or stripping and high feed

Higher power transmission in hardwoods due to reinforced, asymmetrical thread flank geometry of the coarse thread

Better anchoring thanks to higher thread flanks

Smooth thread start ensures optimised recessing and biting of the screw

Reduced splitting effect due to displacement effect of the dome-shaped milling elements in the tip

Friction-reduced thread rotation allows reduction of the screw-in force to be applied

High strength values and ductility

Adjusted heat treatment guarantees high strength values and high ductility

Notice

We recommend using the Würth software or the corresponding design aids for planning and dimensioning your assembly. Dimensions of the ASSY screws can be carried out in the Würth timber construction software from a ∅ of 5 mm

Do not use the screw in applications with direct exposure to the elements or in humid rooms with atmospheres containing chlorine gas. If used outdoors and in rooms that are constantly exposed to high humidity, please use ASSY 4 A2 WH or ASSY 4 A2 BP stainless steel screws

ASSY 4, ASSYplus 4 and ASSYplus 4 FT chipboard screws are optimised for use in wood and wood materials. For applications in plastic anchors where load capacity can also be reduced, use only screws without an optimised thread tip (tip with milling ribs, drill tip, self-clearing groove etc.), such as the ASSY D screws with countersunk head or pan head

ETA-11/0190 approved

The requirements of the European Technical Approval (ETA) must be observed

Usage

Application area

For wood-wood connections designed to pull together

The partial thread starting immediately below the shank allows for wood-wood connections designed to pull together. The screw thread is positioned entirely in the lower component once screwed in.

For applications in utilisation class 1 and utilisation class 2 (from ∅ > 4 mm)

High-quality surface protection, zinc, blue-passivated chromium(VI)-free 8 µm layer thickness

Suitable for use in utilisation class 1 (interior) and from ∅ > 4 mm in utilisation class 2 (covered outdoor area) according to EN 1995-1-1:2010-12 + DIN SPEC 1052-100:2013-08

The requirement of classification T2/C2 is fulfilled in accordance with prEN 14592:2017 (D)

Instructions

ASSY screws are approved for quasi-static loads

For optimum use of the screw, the right-size RW bit must be used

Partial-thread screws are ideal for connecting wooden components. To achieve optimum assembly of the components, the components to be fixed must not be thicker than the length of the shank

For long screws arranged in a cross shape or in a screw block with narrow edge clearances, it is advisable to drill pilot holes or use a screw-in aid to avoid intersecting of the screws

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