M4 x 40mm Socket Cap Bolts Sets Marine A4 Stainless Steel with Nuts and Washers, Part Thread Corrosion Resistant Fasteners (Pack of 5)

A4 316 MARINE GRADE STAINLESS STEEL Material: A4 316 stainless steel throughout (bolt, nut, washer). Grade properties: contains molybdenum. Applications: marine environments, coastal installations, outdoor use, saltwater exposure. Construction: bolts, nuts, and washers all in A4 316 stainless steel. M4 x 40mm SOCKET CAP BOLT Head type: socket cap head (cylindrical, internal hex drive). Drive: 3mm hex key. Thread: M4 x 0.7mm metric coarse. Thread coverage: part thread (plain shank with threaded section at the tip). Standard: DIN 912 socket head cap screw profile. PACK OF 5 – COMPLETE BOLT ASSEMBLY SETS Pack contents per set: 5 M4 x 40mm socket cap bolts. Plus matching A4 316 stainless hex nuts: 5. Plus matching A4 316 stainless flat washers: 5. Total components per pack: 15 pieces (5 of each component). All components in matching A4 316 marine grade stainless steel. PART THREAD – THREAD AT THE TIP, PLAIN SHANK NEAR HEAD Part thread bolts have a plain (unthreaded) shank near the head with threading only at the tip — suitable where the plain shank passes through one material and the threaded section engages a nut or tapped hole on the other side. Installation: drill clearance hole, pass bolt through, fit washer and nut, tighten with hex key. COMPATIBLE WITH STANDARD METRIC HARDWARE Thread compatibility: standard right-hand metric coarse pitch, compatible with all standard metric nuts, washers, tapped holes across all major brands. Pairs with: A4 316 stainless hex nuts, nyloc nuts, dome nuts, flange nuts, wing nuts, lock washers, penny washers — browse our store for the complete A4 stainless fastener range.