Stainless Steel Fasteners — A2-70, A4-80, 304, 316
Stainless steel fasteners are produced by a different group of factories than carbon steel — the cold-forging lines, tooling, and metallurgical controls are specialized. HDBolt sources from factories that genuinely work with austenitic stainless material, with PMI (Positive Material Identification) testing available on critical orders.
Sub-categories
Stainless Hex Bolt
Stainless steel hex bolts in DIN 933 (full thread) and DIN 931 (partial thread) configurations, in A2-70 (304) for gener...
Stainless Hex Nut
Stainless hex nuts to DIN 934 / ISO 4032. Match the stainless grade to the bolt — A2 nut with A2 bolt, A4 nut with A4 bo...
Stainless Threaded Rod
DIN 975 fully threaded rods in austenitic stainless steel — 304 (A2-70) and 316 (A4-80). Standard for stainless HVAC han...
Stainless Self-Tapping Screw
Stainless steel self-tapping screws — 304 for general corrosion resistance, 316 for marine and chemical environments. Pa...
Stainless Self-Drilling Screw (Bi-Metal)
Bi-metal self-drilling screws solve the contradiction between drill point hardness (which stainless can't fully achieve)...
Stainless Anchor
Stainless steel concrete anchors for outdoor, marine, and corrosive environments. 304 stainless for general outdoor use;...
Stainless Washer
Stainless washers in the standard configurations (DIN 125 flat, DIN 9021 fender, DIN 127 spring) in 304 (A2) and 316 (A4...
Stainless Socket Cap Screw
Stainless socket cap screws (Allen bolts) to DIN 912 / ISO 4762 in austenitic stainless. A2-70 for general use; A4-70 fo...