HEX SOCKET HEAD – HEX HEAD SCREWS
FASTENERS STANDARD
Produced in:
• Carbon steel in class 8.8/10.9/12.9 ISO 898-1.
• Stainless steel AISI 304 A2 – AISI 316 A4 – ISO 3506 – 1.
SPECIFIC FASTENERS FOR THE PETROCHEMICAL SECTOR
Available:
METRIC PITCH
• UNI 5931/DIN 912/ISO 4762 fully threaded.
• UNI 5739/DIN 933/ISO 5739 fully threaded.
INCH PITCH
- ANSI B18.3 fully threaded.
- ANSI B18.2.1 (NORMAL SERIES – HEAVY SERIES).
Possibility of making screws with partial thread or other types of head (e.g. BI-HEXAGONAL screws) on request.
- Cold forged from D. M5/M6 – 1/4″ up to D. M22 – 7/8″ for economical batches.
- Hot stamp up to D. M100/4″ or for small batches of smaller diameters and/or special materials
In the various sector-specific materials: ASTM A193/A320 (B7/B7M/L7/L7M B16/B8/B8M/B8R), A453 (gr. 660)/F468 (Hastelloy®, Monel®, Titanium), B637 Inconel® – EN 10269 – ISO 15156 (e.g. NACE MR 0175) – ISO 17945 (e.g. NACE MR 0103) – DUPLEX/SUPERDUPLEX stainless steel, etc…
We have fully threaded HEX HEAD – HEX SOCKET HEAD SCREWS up to D. M24/1″, made of ASTM A193 GR. B7/B7M – 4320 GR. L7/L7M.
In a very short time, the following are available: HEX HEAD SCREWS, HEX SOCKET HEAD SCREWS in diameters up to max M24 made in ASTM A 193/A320 B8/B8M.
Contact us for an offer!



