20 mm Socket Cap Screw, 304 Stainless Steel - SCSA2M8X20
Available
Made in 304 (A2) stainless steel, the Clearance Hex Socket Cap Head Screw is a cylindrical-head screw driven by a hex key (Allen key) set into the head. The recessed drive allows high tightening force in a compact space and the head can sit below the surface in a counterbore.
The A2 (304) stainless material suits indoor, fresh water and typical outdoor use. Where the fastening is exposed to salt air, pool chemicals or marine conditions, A4 (316) is the grade to use instead.
You can choose from 2 variants, covering lengths 20 mm to 30 mm.
In wet conditions, keep stainless steel apart from aluminium and galvanised steel with a washer or sleeve, to reduce the risk of galvanic corrosion.
Where this product is used
- Food, beverage and washdown equipment
- Indoor architectural and joinery work
- Counterbored joints where the head needs to sit flush or below the surface
- Signs, furniture and fittings
- Machinery, jigs, fixtures and tooling
Features
- Cylindrical head sits neatly in a counterbore
- Hex key drive allows high tightening force in tight spaces
- Lengths from 20 mm to 30 mm
- A2 (304) stainless steel for indoor, fresh water and general outdoor use
Key specifications
| Specification | Detail |
|---|---|
| Product | Clearance Hex Socket Cap Head Screw |
| Type | Cylindrical-head screw driven by a hex key (Allen key) set into the head |
| Material | A2 (304) stainless steel |
| Variants | 2 |
| Lengths | 20 mm to 30 mm |
| Magnetic response | Generally non-magnetic (austenitic); cold-worked parts can show weak magnetism |
| Fitting tip | Use anti-seize on the thread to reduce galling |
| Drive | Hex socket |
| Typical environment | Indoor, fresh water and general outdoor use |
| Key features | Hex key drive allows high tightening force in tight spaces; Cylindrical head sits neatly in a counterbore |
| Head type | Cylindrical |
Selecting the right option
Use a hex key that fits the socket exactly, because a loose key rounds out the recess. Stainless socket screws are not the same strength as alloy-steel socket screws, so do not substitute them where the joint depends on high-tensile strength. Use anti-seize on the thread.
Related products
Also available: Metric Hex Socket Cap Head Screw - 316 Stainless Steel, UNC Hex Socket Cap Head Screw - 316 Stainless Steel and Metric Hex Socket Cap Head Screw - 304 Stainless Steel. Matching products: Imperial Flat Round Washer (Standard) - 304 Stainless Steel and Imperial Spring Washer - 304 Stainless Steel.
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Clearance - Stainless Steel Hex Socket Cap Head Screw: 20 mm
SKU: CA0073853 | Model: SCSA2M8X20
This is the fastener length 20mm option of the Clearance - Stainless Steel Hex Socket Cap Head Screw. Key details for this option: material 304 Stainless Steel, grade A2 (304).