ScrewSource304 Stainless Steel
Hex Socket Screws
Hex socket screws are driven by a hexagonal key (Allen key) recessed in the head, which allows high torque with a clean, flush appearance. We supply 304 stainless hex socket screws in socket cap, countersunk and button head styles, plus equivalent carbon steel families with plated finishes.
304 Stainless Button Head Hex Socket Screws
Button head hex socket screws — low rounded head, kinder to materials, smoother look.
304 Stainless Hex Socket Head Cap Screws
304 stainless hex socket cap screws — high-torque hex drive with a cylindrical head for clamped joints.
304 Stainless Countersunk Hex Socket Screws
Countersunk (flat head) hex socket screws — flush seating with high-torque hex drive.
304 Stainless Knurled Socket Head Cap Screws
Knurled socket head cap screws — cylindrical head with a knurled rim for grip and appearance.
304 Stainless Low Head Socket Cap Screws
Low head socket cap screws — reduced head height for tight headroom with hex tooling.
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About this category
The hex drive takes torque far better than a cross recess, so hex socket screws suit clamped joints that are tightened hard — jigs, fixtures, machine frames and 3D printer or robotics builds. Countersunk (flat) heads sit flush with the surface; button heads give a low, rounded profile with a wider bearing area.
304 stainless is the default choice for corrosion resistance without plating. Plated carbon steel versions are stronger per size but rely on their coating — choose by environment and strength requirement, and ask us when a grade or standard number matters for your project.
Typical applications
- Machine frames, jigs and fixtures
- Electronics housings needing flush or low-profile heads
- Robotics, 3D printers and hobby engineering
- Equipment assembly where torque matters more than speed
Materials & finishes
304 austenitic stainless steel screws — corrosion resistant without any plating, the default choice for damp, outdoor and food-contact environments. Current supply lines cover self-tapping, machine, hex socket and screw-and-washer assemblies. Availability of any specific size or grade depends on the item and is confirmed with your quotation.
304 stainless — sourcing and supply experience; availability depends on specification.
Hex Socket Screws — common questions
Socket cap, countersunk or button head — which one do I need?
Use socket cap for general high-clamp assembly, countersunk when the head must sit flush with the surface, and button head for a low profile with a smoother look. Our guides cover the trade-offs in detail.
Can you provide grades (e.g. 10.9 / 12.9) or standard numbers?
Grade and standard data are confirmed per product in our database. Send us the requirement with your RFQ and we will confirm what the supplying factory can document — availability depends on specification.
Do you sell hex socket screws in stainless only?
Our stainless line is 304. Nickel plated and black oxide finished carbon steel families are also part of the catalog — check the Screw & Washer Assemblies and other categories, or ask with your specification.
Can't find the exact spec? We source it.
Send your sizes and requirements — quotation based on quantity and specification, with this category's context attached.
