
Suppliers of Stainless steel bolts, hex cap screws and studs. Inch series (ASTM F593)
Technical data
Stainless steel bolts, hex cap screws and studs. Inch series (ASTM F593)

This product is regulated by the following standards:
Details
Stainless steel bolts, hex cap screws and studs. Inch series (ASTM F593)

ASTM F593 chemical composition. % max except as shown |
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Austenitic Alloys |
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Alloy group | UNS Nr | Alloy | C | Mn | Ph | S | Si | Cr | Ni | Cu | Mo | others | |
1 | S30300 | 303 | 0.15 | 2 | 0.2 | 0.15 MIN | 1 | 17-19 | 8-10 | - | 0.6 MAX | - | |
S30323 | 303 SE | 0.15 | 2 | 0.2 | 0.06 | 1 | 17-19 | 8-10 | - | - | Se 0.15 MIN | ||
S30400 | 304 | 0.08 | 2 | 0.045 | 0.03 | 1 | 18-20 | 8-10.5 | 1 | - | - | ||
S30403 | 304 l | 0.03 | 2 | 0.045 | 0.03 | 1 | 18-20 | 8-12 | 1 | - | - | ||
S30500 | 305 | 0.12 | 2 | 0.045 | 0.03 | 1 | 17-19 | 10.5-13 | 1 | - | - | ||
S38400 | 384 | 0.08 | 2 | 0.045 | 0.03 | 1 | 15-17 | 17-19 | - | 0.5 MAX | - | ||
S20300 | XM 1 | 0.08 | 5-6.5 | 0.04 | 0.18-0.35 | 1 | 16-18 | 5-6.5 | 1.75-2.25 | - | - | ||
S30430 | 18-9 LW | 0.10 | 2 | 0.045 | 0.03 | 1 | 17-19 | 8-10 | 3-4 | - | - | ||
S30433 | 302 HQ | 0.03 | 2 | 0.045 | 0.03 | 1 | 17-19 | 8-10 | 3-4 | - | - | ||
2 |
S31600 | 316 | 0.08 | 2 | 0.045 | 0.03 | 1 | 16-18 | 10-14 | - | 2-3 | - | |
S31603 | 316 L | 0.03 | 2 | 0.045 | 0.03 | 1 | 16-18 | 10-14 | - | 2-3 | |||
3 | S32100 | 321 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17-19 | 9-12 | - | - | Ti 5X C min | |
S34700 | 347 | 0.08 | 2 | 0.045 | 0.03 | 1 | 17-19 | 9-13 | - | - | Cb+Ta 10 X C MIN |
Ferritic Alloys |
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UNS Nr | Alloy | C | Mn | Ph | S | Si | Cr | Ni | Cu | Mo | Others | ||||||
4 | S43000 | 430 | 0.12 | 1 | 0.04 | 0.03 | 1 | 16-18 | - | - | - | - | ||||||
S43020 | 430 F | 0.12 | 1.25 | 0.06 | 0.15 MIN | 1 | 16-18 | - | - | 0.6 MAX | - |
Martensitic Alloys |
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UNS Nr | Alloy | C | Mn | Ph | S | Si | Cr | Ni | Cu | Mo | Others | |
5 | S41000 | 410 | 0.15 | 1 | 0.04 | 0.03 | 1 | 11.5-13.5 | - | - | - | - | |
S41600 | 416 | 0.15 | 1.25 | 0.06 | 0.15 | 1 | 12-14 | - | - | 0.6 MAX | - | ||
S41623 | 416 SE | 0.15 | 1.25 | 0.06 | 0.06 | 1 | 12-14 | - | - | - | Se 0.15 MIN | ||
6 | S43100 | 431 | 0.2 | 1 | 0.04 | 0.03 | 1 | 15-17 | 1.25-2.5 | - | - | - |
Precipitation Hardening Alloys |
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UNS Nr | Alloy | C | Mn | Ph | S | Si | Cr | Ni | Cu | Mo | Others | ||||||
7 | S17400 | 630 | 0.07 | 1 | 0.04 | 0.03 | 1 | 15-17.5 | 3-5 | 3.5 | - | Cb+Ta 0.15-0.45 |
Full list of Suppliers of Stainless steel bolts, hex cap screws and studs. Inch series (ASTM F593)

Founded in 1969, Buora D.P.U. is a distributor certified following ISO 9001.
The company offers the complete range of high strength fasteners, ready on stock, both coarse and fine pitches with metric and inch threads.
Distributor of prestigious brands such as UNBRAKO and NORD-LOCK, for Buora D.P.U. the service always comes first, therefore there is not minimum quantity required.

Distributor of standard and special fasteners.
The company supplies fasteners with various types of thread: UNC, UNF, BSW and BSF. The products meet standards such as ISO, DIN, ASTM, ANSI and BS.
Distributor of inch sized fasteners, oil and gas fasteners and turned special screws
Stainless steel fastener manufacturer
Capacity of 150-200 Tons/month in the diameters #2~3/8' or M2~M8. Lengths available: 1/4'~6' or 6mm~150mm
Manufacturer of stainless steel fasteners A2 and A4. Tapping Screws, Machine Screws, Wood Screws, Chipboard Screws, Hex cap Screws, Hexagon Bolts.
Metric (M2-M8) and inch threads (#2 - #14)
We offer logistics and inventory management and integrated supply chain management services covering a wide market of OEM fasteners (KanBan), MRO and Personal Protective Equipment (Vending Machine).
Manufacturer of machine screws, self tapping screws in small diameters, and wire in stainless steel
Important manufacturer of stainless steel fasteners, in particular hexagon head screws.
Supplier of stainless steel wire
Manufacturer of special cold and hot forged nuts and bolts: Metric, UNF, UNC, BSF & BSW (Whitworth) threadforms
Manufacturer of inch bolts, nuts and stud bolts. Diameter from 3/4″ up to 26″ and lenghts from 1″ up to 36″
International stainless steel fastener manufacturing group with several manufacturing bases in Malaysia, Thailand and China
Manufacturer specialized in the production of machine screws and self tapping screws in stainless steel
Manufacturer of hex head, socket, threaded rods, nuts - flanges in stainless steel Austenitic, Ferritic, Martensitic, Austenitic-Ferritic (Duplex). Dia. M6÷M27, 1/4"÷1". Steel Mill & Producer of wire rods and bars in stainless steel
Manufacturer of stud bolts and fixing elements.
Stainless steel is our main material, and our wedge anchors feature manually machined characteristics.
Our core value is to produce customized and innovated wedge anchors based on your drawings. Our expansion clip is specially designed. Our products also include special bolts and flat washers.