STANDARD BOLTING
Manufactured in:
• Carbonio Steel in class 8.8/10.9/12,9 ISO 898-1
• Stainless steel AISI 304 A2 – AISI 316 A4 – ISO 3506 – 1
SPECIFIC BOLTING FOR THE PETROCHEMICAL INDUSTRY
Fornibili:
METRIC PITCH
• UNI 5931/DIN 912/ISO 4762 fully threaded
• UNI 5739/DIN 933/ISO 5739 fully threaded
INCH PITCHCI
• ANSI B18.3 fully threaded.
• ANSI B18.2.1 (NORMAL SERIES – HEAVY SERIES)
Possibility to make screws with partial thread or other head types (e.g. BI-HEXAGONAL screws) upon request.
• Cold stamped da D. M5/M6 – ¼” fino a D. M22 – 7/8″ for economic batches.
• Hot stamped up to D. M100/4″ or for small lots of smaller diameters and/or special materials.
In different industry-specific materials: ASTM A193/A320 (B7/B7M/L7/L7M B16/B8/B8/B8M/B8R), A453 (gr. 660)/F468 (Hastelloy®, Monel®, Titanium), B637 Iconel® – EN 10269 – ISO 15156 (exv NACE MR 0175) – ISO 17945 (ex NACE MR 0103) – DUPLEX/SUPERDUPLEX stainless steel, etc…
We have in stock fully threaded TE/TCEI screws up to D. M24/1″, made of ASTM A193 GR. B7/B7M – 4320 GR. L7/L7M.
In a very short time, can be supplied: TE/TCEI SCREWS in diameters up to max M24 made of ASTM A 193/A320 B8/B8M.
Possibility of making all types of coatings: electrolytic (galvanizing, zinc-nickel, nickel-plating, silver-plating), chemical nickel-plating (NYPLOY®), HDG hot-dip galvanizing (also with pre-emptively minoritized thread and/or nominal/majoritized thread), dry/oiled phosphating, Teflon-plating (Xylar® and Xylan®), Zinc Lamellae (e.g. Geomet®) and others upon request.
In materials, in addition to those already mentioned:
A194 GR. 16, DUPLEX STAINLESS STEEL, SUPERDUPLEX STAINLESS STEEL, HIGH TEMPERATURE STAINLESS STEEL (ASTM A453 GR. 660 – ASTM A437 B4B). Exotic alloys (HASTELLOY®, INCONEL®, MONEL®, TITANIUM, etc.).
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