Resitant Metal Alloys is a manufacturer & supplier of Carbon steel AISI 1040 Fasteners for general purpose bolting. AISI 1040 fasteners includes bolts, screws, stud bolts (studs), threaded rods, nuts, washers and custom fastening parts. These carbon steel fasteners are produced with complete metric and imperial size range with ISO, Unified UN, UNC, UNF, UNEF, BSW & BSF thread profiles. AISI 1040 boltings are produced by hot forming and machining to size.

Hex bolts, heavy hex bolts, stud bolts, threaded rods, double end studs, nuts, socket head cap screw, set screws and custom components are common products in AISI 1040 fasteners.

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AISI 1040 Fasteners

AISI 1040 Equivalent Grades

xxx	xxx	xxx	xxx
Carbon® 1040	EN8	UNS G10400	DIN CK45

AISI 1040 Properties

Chemical Composition
Carbon	Iron	Manganese	Sulphur	Phosphorus
0.37 - 0.44 %	Balance	0.40 - 0.60 %	<0.05 % max	<0.04 % max

Mechanical Properties
Tensile Strength	Yield Strength	Elongation at Break	Hardness, Brinell BHN
620 MPa	415 MPa	25 %	93

Specifications