Surface: Untreated, black zinc plated, nickel plated. Material: 304 stainless steel, 316 stainless steel, 201 stainless steel, carbon steel. 304 stainless steel belongs to austenitic stainless steel.
eBay
Lengthened M2 M2.5 M3 M3.5 M4 M5 M6 M8 3-100mm Cross Phillips Flat Countersunk Head Screw Bolt A2-70 304 Stainless steel
Aliexpress UK
100 x M4 X 30 ZINC PLATED MACHINE SCREW POZI PAN HEAD DRIVE BOLTS SCREWS.
eBay
50~5pcs M1.6 M2 M2.5 M3 M4 M5 M6 304 Stainless steel Cross Phillips Flat Countersunk Head Screw Bolt
Aliexpress UK
M4 STAINLESS SLOTTED PAN HEAD MACHINE SCREWS.
eBay
M2 M2.5 M3 M4 3/4/5/8/10/12/16/18/20/25-40 Black 304 Stainless Steel Inner Hex Hexgaon Socket Button Round Allen Head Bolt Screw
Aliexpress UK
Stainless Steel - Pozi Drive Pan Head. Pan Head Machine Screws With Nuts.
eBay
304 Stainless Steel External Hex Hollow Head Bolt Full Thread Through Hole Screws M4 M5 M6 M8 M10
Aliexpress UK
Pan head bolts (Machine screws), steel, bright zinc plated. Pan head screws have the top edge of the head rounded over (cheese head screws are similar but they have a flat top with a right angle edge to it, and the head part is slightly thicker).
eBay
2~50pcs Carriage Bolt 304 Stainless Steel Round Head Square Neck Screw M3 M4 M5 M6 M8 M10 M12 Length 8mm~120mm
Aliexpress UK
M2 M3 M4 Slotted Pan Head Machine Screws. Further details are as follows A2 Stainless Steel. BA Screws, Nuts. BSW Screws, Nuts. UNC Screws, Nuts. Slot Depth - 0.4mm. Slot Width - 0.5mm.
eBay
5/10/20/50pcs JISB1111T M2 M2.5 M3 M4 M5 M6 Black 304 A2-70 Stainless Steel Cross Large Round Phillips Big Truss Head Screw Bolt
Aliexpress UK
Head style Pan. Thread size M 4. Material Stainless Steel.
eBay
1PC Precise Bolt Size Finder Keychain, Size Catcher, Bolt and Nut Identifier Gauge Size Gauge Precise Bolt Size Finder Keychain
Aliexpress UK
304(A2-70) stainless steel. Thread length.
eBay
1pc/2pcs Stainless Steel Double-Sided Bolt Gauge Card, Portable Dual-Sided Bolt Measurement Card, Nut and Bolts Thread Checker
Aliexpress UK