321 Black Nature stainless steel Hexagon socket head bolt 20mm Hexagon socket head bolt steel 321 Hexagon socket head bolt
Stainless steel 321 fasteners are strong with a minimum yield strength of 276MPa and a minimum tensile strength of 621MPa. The material has a melting point of up to 1399 degrees Celsius and can have very high operating temperatures. This bolt has the highest carbon content and is commonly found in pans and cooking tools. Essentially non-magnetic 321 stainless steel bolts are slightly magnetic when cold worked. Alloy 321 bolts are also used in sinks, tabletops, coffee makers, refrigerators, stoves, utensils and other cookware.
Type “Stud Bolt
Hex Bolt £¨full thread£¬partial thread)
Thread Rod
U-Bolt U
Hex Socket Cap Screw
Hex Nut
Flat Washer
Spring Washer ”
Size DIN£ºStud Bolt £ºM6~M100 £¬Hex Bolt £ºM6~M64
ASME£ºStud Bolt£º1/4″~5″£¬ Hex Bolt £º1/2″~2 1/2″
Finish Cold galvanizing ,Hot-dip Galvanizing ,PTFE ,Zinc Nickel ,Black coating ,Plain
Producing Standard ASME £ºASME B18.2.1
ASME B18.2.2
ASME B18.22.1 Plain Washer
DIN£ºDIN931 Hex Bolt with partial thread
DIN 933 Hex Bolt with full thread
DIN 912 Hex Socket Cap Screw
DIN 934 Hex Nut
DIN 125 Plain Washer
DIN127 Spring Washer
DIN 975 Threaded Rods
DIN 976 Stud Bolts
DN 3570 U-Bolt
Material Grade Nickel Alloy Steel :UNS N02200/Ni 200, UNS N02201 /Ni201,
UNS N04400/ Monel 400,Monel K500 ,
UNS N06600/Inconel 600 ,UNS N06601/ Inconel 601 ,Inconel 625 ,
UNS N08800 /Incoloy 800 ,UNS N08810 /Incoloy 800HT ,UNS N08811 /Incoloy 800HT, UNS N08825/ Incoloy 825
UNS N06002 /Hastelloy X, UNS N06022/ Hastelloy C22, UNS N06200/C2000, ,UNS N10276/ Hastelloy C276, UNS N10665 /Hastelloy B2, UNS N10675/Hastelloy B3 ,
UNS N08020 /Alloy 20, UNS N08031/Alloy 31