304 / 316 stainless steel · Timber fixing
Stainless Steel Type 17 Chipboard Screws with Washer
304 and 316 stainless steel Type 17 chipboard screws combine a countersunk screw with a stainless washer assembly. The point and coarse wood thread support timber engagement; washer dimensions, backing and drive are specified with the complete connection.
- 304 / 316 stainless steel
- Countersunk screw head with a stainless washer assembly
- Drive and assembly details confirmed against the final sample
KEY FEATURES & PERFORMANCE
Screw and washer.
One fixing detail.
Specify the screw and washer as one assembly. Confirm washer diameter, backing construction, head seating and drive before ordering; the Type 17 point and coarse thread must also match the timber and the required engagement.
- 01
Grade selection for the exposure
304, often described as 18-8, is used for general exposure; molybdenum-bearing 316 is considered for salt or chemical conditions. Match the grade to the timber treatment or contact materials and environment.
- 02
A broad washer bearing face
The stainless washer spreads clamp force over timber or chipboard. Washer diameter, seat profile and board condition are considered together to limit local surface damage.
- 03
Sealing as an assembly requirement
The source describes a washer with a sealing backing. Specify its material and dimensions, then assess the complete connection; a washer image does not establish waterproof performance.
- 04
Type 17 fibre cutting
The notched point cuts timber fibres to help the thread engage and reduce splitting tendency. Board type, screw size and edge distance still determine pilot preparation.
- 05
Coarse threads for the substrate
Deep threads engage chipboard, timber or engineered wood. Final holding strength depends on substrate condition, embedment and the selected fastener configuration.
- 06
Drive matched to the supplied version
The image shows a cross recess; the source lists Torx and Pozidriv. Confirm the drive against the approved sample before selecting tools or treating the options as available variants.
TECHNICAL SPECIFICATIONS
Size & Configuration Overview
Use the listed range to define the configuration for your product enquiry.
| Material grade | 304 / 316 stainless steel |
|---|---|
| Head form | Countersunk screw head with a stainless washer assembly |
| Drive configuration | Cross recess pictured; Torx / Pozidriv listed, version to confirm |
| Point | Type 17 notched wood point |
| Thread form | Coarse wood / chipboard thread |
| Washer and backing | Pre-assembled stainless washer; sealing-backing specification to agree |
| Listed diameters | #8, #10, #12 and #14 |
| Listed length range | 1-8 in (source nominal range 25-203 mm) |
| Finish requests | Head colour, passivation and specialty finish by agreed specification |
| Custom production | Head marking, dimensions, tolerances and packaging to an agreed brief |
The listed dimensions are a range, not a diameter-by-length stock matrix. Grade, size, drive, thread, point and finish are confirmed together with the quotation.
APPLICATIONS & CONNECTION PLANNING
Connections This Range Is Made For
Timber framing
Specify member thicknesses and the required bearing area under the washer. Structural use requires data for the actual screw, timber and connection.
Chipboard & engineered wood
Board density and edge distances affect engagement and splitting. Review the Type 17 point, coarse thread and washer seat with the intended board material.
Cladding, roofing & outdoor wood
Weather-exposed connections require an agreed sealing assembly and compatible substrate. Confirm washer backing, installation detail and the complete weather-seal requirements.
Select against the actual materials, joint dimensions and exposure. Performance requirements need data for the ordered configuration and complete connection.
COATING SOLUTIONS
A Finish That Fits
the Project
Head colour matching, passivation and specialty finishes can be reviewed with your selected screw. Include the desired appearance and exposure conditions in the enquiry.
Specify the stainless grade, contact materials and environment alongside the finish. A decorative head colour and a protective surface treatment serve different purposes; coating scope and any test requirements are agreed for the exact configuration.
Explore Coating Solutions →CUSTOMER QUESTIONS
Product, OEM & Packaging Q&A
Product selection, configuration checks, custom production and packaging for this range.
Product
Does the washer make the connection waterproof?
No such result follows from the washer alone. The source lists a sealing backing, but its material and performance need confirmation for the complete installed assembly; no EPDM specification is assumed.
Product
Is the drive Torx or Pozidriv?
The photograph shows a cross recess. The source lists Torx / Pozidriv, but the supplied drive must be confirmed against the final drawing and sample. Those listings do not establish both as stock variants.
Product
Can Type 17 be driven without a pilot hole in every board?
No. Chipboard, solid timber and engineered wood behave differently. Confirm hole preparation for the board, diameter and edge distances before fixing.
OEM
Can you customise the screw design?
Yes. Head markings, head and drive details, dimensions and tolerances can be reviewed against your drawing or specified standard. A custom design is agreed separately from the pictured configuration.
OEM
Can you match the head colour or finish?
Yes. Share the target colour, appearance and exposure conditions. Head painting, passivation and specialty finishing requests are reviewed for the selected material and screw configuration.
OEM
Can we approve samples before full production?
Custom samples and initial inspection reports can be arranged before the production order. The sample scope, cost and timing are confirmed during development.
Packaging
Which pack formats can we request?
Options include small polybags, inner boxes and industrial bulk packing. State the order quantity, units and preferred pack count; the final packing quantity and carton size are agreed for the order.
Packaging
Can the packaging carry our brand?
Yes. Inner and outer boxes, printed logos and supplied artwork can be included in a private-label packaging brief. Artwork and print details are approved before production.
Packaging
Can you include barcodes and shipping marks?
Private labels, UPC / EAN barcodes, part numbers and shipping marks can be included. Provide the required identifiers and label artwork so they can be checked against the product and pack format.
ORDER SUPPORT
Documents, Production & Delivery
Material & inspection records
MTRs and mill certificates can be requested with the enquiry. Identify the material, order and document requirements so record scope and batch traceability can be agreed. Inspection reports are matched to the selected configuration.
Stock, bulk & custom orders
Available stock, bulk production and custom work follow different scheduling routes. Confirm availability for the exact configuration; quantities, specification and sample approval determine the quoted production and dispatch schedule.
International shipping
FOB, CIF or DDP terms can be reviewed for your destination, with shipment tracking arranged for the agreed route. Destination availability, duties, charges and delivery timing are confirmed in the quotation.
Standards & Material References
| Dimensional references | ASME B18.6.3 / ASME B18.2.1 / ANSI |
|---|---|
| Material / physical references | ASTM F593 (Group 1: 304/305; Group 2: 316) / ASTM A240 |
Source-listed references require confirmation of edition and component scope; specify the exact ANSI standard. The list is not a certificate or proof that every reference applies to this screw.
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