304 / 305 stainless steel · Torx trim head
Stainless Steel Trim Head Torx Type 17 Deck Screws

A 304 / 305 stainless steel deck screw with a low-profile trim head, T20 / T25 Torx recess and Type 17 point. It combines a compact visible fixing with deep threads for timber-supported composite, PVC, capstock and treated-lumber decking.
- 304 / 305 stainless steel
- Low-profile trim head
- T20 / T25 Torx / Notched Type 17 auger point
KEY FEATURES & PERFORMANCE
Subtle fixing.
Firm board contact.
The trim head limits the visible fixing area while the Type 17 notch starts through board fibres. Deep threads engage the underlying timber to draw the board into contact. Specify the board and support together for a clean seat and a secure connection.
- 01
304 / 305 stainless construction
These stainless grades provide corrosion resistance for exterior decking. Match the selected alloy to moisture, timber treatment and site exposure rather than assuming one grade suits every environment.
- 02
Low-profile trim head
The compact head is designed to leave a small visible fixing and reduce displaced board material. Confirm seating depth on the specified board to control surface appearance.
- 03
Deep Torx recess
T20 / T25 drive options provide firm bit engagement for torque transfer. The correct bit and installation setting help reduce slippage and damage to the recess.
- 04
Type 17 fibre-cutting point
The notched point cuts into timber and composite fibres to encourage quick thread engagement. Pilot-hole requirements still depend on board construction, timber density and fixing position.
- 05
Deep threads for board clamping
Sharp thread geometry engages the timber joist to pull the board into contact. This helps limit movement at the fixing; long-term squeak and cupping behaviour also depend on the complete deck design.
- 06
Composite and timber choices
The range covers several board families in its published applications. Review the board profile and fixing instructions alongside the head seat, screw length and usable timber engagement.
TECHNICAL SPECIFICATIONS
Size & Configuration Overview
Use the listed design options to prepare the specification for your enquiry.
| Material grade | 304 / 305 stainless steel |
|---|---|
| Head form | Low-profile trim head |
| Drive | T20 / T25 Torx |
| Point | Notched Type 17 auger point |
| Listed diameters | #8, #9 and #10 |
| Length | Confirm required length and unit with the enquiry |
| Thread detail | Deep, sharp thread geometry for timber engagement |
| Connection focus | Composite, PVC, capstock and treated-lumber decking on timber |
| Finish options | Head painting, passivation or specialty finish by custom enquiry |
| Custom production | Head marking, dimensions and tolerances to the agreed drawing |
Diameters and drive options do not form a complete stock matrix. Length and the final combination of grade, head, point, thread and finish are confirmed with the quotation.
APPLICATIONS & CONNECTION PLANNING
Connections This Range Is Made For
Composite & capstock
Provide the composite or capped-board manufacturer, section and fixing instructions. The trim head should be checked for surface disturbance and depth on a representative board before use.
PVC decking
Match the head seat to the PVC board construction and its required movement allowance. Specify board thickness and timber support so length and engagement can be reviewed together.
Treated timber boards
Include the timber species, preservative treatment and exposure conditions. These details guide material selection, pilot holes and edge distances; a Type 17 point does not override the fixing requirements.
Follow the board and support requirements for the exact joint. Fixing capacity, usable engagement and preparation depend on the selected configuration.
COATING SOLUTIONS
A Finish That Fits
the Project
Head painting, passivation and specialty finishes can be reviewed as part of a custom order for this stainless steel range.
Choose the finish with the board appearance, timber treatment and exposure in mind. Any requested colour, treatment or corrosion test belongs in the agreed specification; custom finishing services do not imply that every treatment is a standard stocked option.
Explore Coating Solutions →CUSTOMER QUESTIONS
Product, OEM & Packaging Q&A
Product details, custom manufacturing and packaging options for your next enquiry.
Product
How does this differ from the metal-drilling trim-head model?
This screw uses a Type 17 point for timber-supported connections. A metal joist calls for a separate drill-point design and a review of the support thickness.
Product
Will the trim head always prevent mushrooming?
The small head is intended to reduce surface disturbance. Results depend on the board profile, preparation and seating depth, so approve the appearance on the actual board.
Product
Are 316 and all lengths included in this range?
The product-specific material listing is 304 / 305. Send any other grade request and the required length for review; listed diameters do not imply every grade-and-length combination is available.
OEM
Can you customise the head, drive or dimensions?
Yes. OEM / ODM enquiries can include head markings, head shape, drive details, dimensions and tolerances. Supply a drawing or the applicable standard so the proposed design can be reviewed.
OEM
Can you match a head colour or special finish?
Yes. Head painting, passivation and specialty treatments can be reviewed with your colour reference and exposure requirements. The process and scope are agreed for the selected screw.
OEM
Can we check samples before full production?
Custom samples and initial inspection reports can be arranged before the production order. Agree the sample specification and review requirements during development.
Packaging
Which packaging formats can we specify?
Options include small polybags, inner boxes, outer cartons and industrial bulk packs. Tell us the quantity per pack and sales channel so the format can be agreed.
Packaging
Can the packaging carry our own brand?
Yes. Supplied logos and artwork can be used for custom box designs and printing across inner and outer packaging. The final artwork is reviewed with the packaging brief.
Packaging
Can you include barcodes, part numbers and shipping marks?
Private labels, UPC / EAN barcodes, part numbers and shipping marks can be included. Provide the required identifiers and label layout for checking with the order.
ORDER SUPPORT
Documents, Production & Delivery
Material & inspection records
Request material test reports (MTRs), mill certificates and the inspection records needed for your order. Document scope and batch traceability are agreed for the selected grade and screw configuration.
Stock & custom production
Stock availability is checked for the requested configuration. Factory-direct bulk and custom orders follow an agreed production schedule based on specification and quantity; dispatch timing is confirmed with the quotation.
Shipping & order support
FOB, CIF and DDP arrangements can be discussed for your destination. The agreed transport route includes shipment tracking, with delivery terms and logistics support set out in the order.
Standards & Material References
| Source dimensional references | ASME B18.6.3 / ASME B18.2.1 / ANSI (designation to be specified) |
|---|---|
| Source material references | ASTM F593 (Group 1: 304/305; Group 2: 316) / ASTM A240 |
Source references require a scope check: F593 covers specified bolts, hex cap screws and studs; A240 covers flat products. They are not blanket certification of this deck screw. Agree the relevant standard and edition.


