SKU: ARP771-1007
UPC: 672036031381
MPN: 771-1007
The ARP Stainless Steel Bolt Kit—8mm x 1.25 x 50mm with 12-point head—delivers five precision-engineered fasteners built for demanding applications where corrosion resistance and consistent clamping force are non-negotiable. ARP's 300M alloy combined with stainless steel construction makes this kit ideal for builds exposed to moisture, salt environments, or extended storage cycles where standard hardware fails.
Each bolt measures 8mm diameter with a 1.25mm thread pitch and extends 50mm in length—specifications that align with metric fastening standards across firearms builds, off-road recovery equipment, and precision machinery assembly. The 12-point head geometry distributes load more evenly than a 6-point design, reducing the risk of rounding under high torque. Polished stainless finish enhances both aesthetics and corrosion resistance in field conditions. The five-piece quantity makes this kit practical for multi-gun builders or those maintaining critical assemblies where bolt replacement is routine maintenance.
Operators and gunsmiths working in coastal regions, humid climates, or high-round-count scenarios where standard bolts show rust or fatigue benefit from stainless upgrades. This kit serves those building AR platforms, precision rifles, or modular systems where metric fasteners are specified. The universal fit design allows integration across multiple build platforms without modification.
ARP fasteners are recognized in high-performance automotive and racing applications for their reliability under extreme stress. The same engineering principles apply here: controlled metallurgy, consistent machining tolerances, and corrosion-resistant alloys ensure these bolts maintain specification across years of use. At 0.32 lbs for the set, weight is negligible for any application.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.