Carriage bolts (coach bolts / round head square neck bolts) to DIN 603, USA pattern and GB 14. The square neck bites into the timber or metal to prevent rotation during tightening. Diameters M6–M24, hot-dip galvanized or plain. Widely used in wood construction, fences, scaffolding and furniture. ISO 9001:2015 certified factory · OEM/ODM supported · Bulk MOQ 500 pcs.
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Mushroom-head carriage bolts to DIN 603 with square neck that locks into wood, so the bolt cannot rotate during tightening. Standard plating is hot-dip galvanized for fencing, timber bridges and playground equipment; sizes M6 to M20 with matching DIN 603 square-neck washers.
Need a quotation? Send us your specification - MOQ from 1,000 pcs, lead time 7-15 days, ISO 9001:2015 certified with EN 10204 3.1 material certificates.
Double End Studs · Eye Bolts · Flange Bolts · Hex Head Bolts · SEMS Bolts · Socket Head Cap Screws · Square Head Bolts · Structural Bolts · T-Head Bolts · U-Bolts
