5/16”-18 x 1.000” Stainless Steel 12-Point Bolt x 5 - CP121

Engineered for heavy-duty applications, this 5/16‑18 x 1″ stainless steel 12‑point flange bolt delivers exceptional performance in wet or corrosive environments. With its integrated flange eliminating the need for separate washers, and the 12-point head enabling superior torque transfer, this bolt is perfect for precision assembly and demanding mechanical use.

• Premium Stainless Steel Construction: Made from high-grade stainless steel—available in either 18‑8 (A2‑70) or 316, depending on your specification—offering outstanding corrosion resistance in marine and outdoor settings.
• 12‑Point Flange Head: Designed for maximum torque transfer and reduced slippage, the 12-point head also resists rounding and head damage. The integrated flange distributes load evenly, removing the need for a washer
• Industry‑Standard Threading UNC coarse 5/16‑18 thread, fully compatible with standard tapped holes, threaded inserts, or nuts.
• Exact Dimensions: Bolt length: 1.000″ (excluding head), thread size: 5/16‑18, head-width and height suited for 3/8″ wrenches or appropriate 12‑point tools
• High Tensile Strength: Comparable to Grade 8 hardware in strength and durability under load
• Pack of 5: Conveniently packaged—just the right quantity for small projects or repairs.