ARP 6131000 stainless steel 3/8-16 12-point bolts, sold as a pack of 5, are precision fasteners engineered for automotive engine applications. These bolts are fully threaded with a 3/8-inch (0.38") diameter and a 12-point head profile for high-torque applications. Constructed of stainless steel with a glossy finish and brass exterior finish noted in manufacturing data, the bolts feature a flat screw head style, Type C screw point, right-hand thread style, UNC thread type, and are rated Grade/Class 8.8. Package dimensions record as 6.0" L x 4.0" W x 0.63" H with an item weight of 0.25 pounds. Ideal for use in connecting rod assemblies and other engine fastening needs where durable, corrosion-resistant hardware is required. Manufactured by ARP in the United States and supplied as a set of five pieces, these bolts combine dependable grade rating and thread class for consistent performance in automotive performance and engine parts applications.
| Materials & Construction | |
| Exterior Finish | Brass |
| Material | Stainless Steel |
| Material Type | Stainless Steel |
| Metal Type | Stainless Steel |
| Product Details | |
| Exterior Finish | Brass |
| Fastener Type | Hexagon Bolt |
| Finish Types | Glossy |
| Head Style | Flat |
| Head Type | Hex |
| Item Diameter | 0.38 Inches |
| Number of Pieces | 5 |
| Screw Head Style | Flat |
| Screw Point Style | Type C |
| Size Name | 3/8 inch |
| Thread Coverage | Fully Threaded |
| Thread Size | 3/8-16 |
| Thread Style | Right Hand |
| Thread Type | Unc |
| Sizing & Dimensions | |
| Height | 0.63 inches |
| Item Dimensions | 6 x 4 x 0.62 inches |
| Length | 6 inches |
| Product Dimensions | 6 x 4 x 0.62 inches |
| Weight | 4 ounces |
| Width | 4 inches |
| Technical Specifications | |
| Grade Rating | Class 8.8 |
| Item Hardness | Grade 2 |
| Thread Class | 8.8 |
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