Overview
The PFC 00050-3250-401 is a Grade 5 hex cap screw designed for industrial fastening applications requiring moderate to high strength. Manufactured by Porteous Fastener Co., these coarse-thread fasteners combine durability with reliable performance in automotive and mechanical assemblies. Each box contains 20 screws finished in zinc-blue for corrosion resistance.
Key Features
- Grade 5 medium-carbon steel construction per ASTM A449
- 3/4-10 UNC coarse thread for secure holding power
- 5-inch overall length for versatile applications
- Hex socket drive with 1-1/8″ wrench size
- Zinc-blue finish for enhanced corrosion resistance
- Box of 20 screws—ready to use in maintenance and assembly
Technical Specifications
- Diameter: 3/4″ (0.75″)
- Thread Pitch: 10 TPI (UNC coarse)
- Length: 5″
- Material: Medium-carbon steel (ASTM A449)
- Grade: Grade 5 (SAE J429)
- Head Style: Hex cap
- Wrench Size: 1-1/8″
- Head Marking: Three radial lines (Grade 5 identifier)
- Proof Load: 85,000 psi
- Tensile Strength: 120,000 psi
- Finish: Zinc-blue
- Quantity per Box: 20
- Part Number: 00050-3250-401












