Carriage Bolts Screws -304 Stainless Steel 18-8-Round Head Square Neck-Carriage Bolts

描述

1.Superior Performance – Carriage bolt is dome head bolt fastener with a locking neck style, which prevents turning when the nut it tightened or removed. Can be used in wood, metal applications；Forged from austenitic 304 (A2) stainless steel, the carriage bolt offers excellent resistance to rain-water, food acids, salt-spray, and most mild chemicals while maintaining a tensile strength of roughly 70 ksi / 480 MPa. The domed head leaves no sharp edges on the clamped surface, making it ideal for safety-critical assemblies.

2.Broad Application Range – Commonly specified for wood projects, timber frame shed build, trailer deck boards, deck project, outdoor bench seat rebuild，outdoor decking and fencing, playground and park equipment, marine joinery, furniture frames, food-processing machinery, and light structural timber-to-steel connections—anywhere a smooth, tamper-resistant head and long-term corrosion protection are required.

3.Easy to Install – The square neck under the head bites into wood or metal plate holes, preventing rotation so that only one tool is needed on the nut side. Standard metric or UNC threads engage smoothly with ordinary hex nuts or threaded inserts, enabling quick, single-side assembly even in tight spaces.

4.Proven Quality – Produced under ISO 9001 systems and conforming to DIN 603 / ISO 4017 dimensions and ISO 3506-1 mechanical requirements. Each batch is thread-gauge checked, hardness tested, and passivated for maximum corrosion resistance; EN 10204 3.1 material certificates and full heat-lot traceability are available on request, assuring consistent, long-service performance.