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Home Product 3/8-16x1-5/8 Hex Head Cap Screw Stainless Steel High Strength Fastener Automotive
US hexagon socket head cap 3/8-16*1-5/8

3/8-16x1-5/8 Hex Head Cap Screw Stainless Steel High Strength Fastener Automotive

3/8-16x1-5/8 hex bolt
1-5/8 inch machine screw
3/8-16 UNC screws
3/8-16*1-5/8
3/8-16x1-5/8 hex bolt with 1-5/8 inch length, 3/8-16 UNC thread standard for mechanical fastening applications. Heavy-duty machine screw designed for hex nut compatibility and precise thread engagement in industrial assemblies.
Categories:Fasteners & Fixings
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Product Description

The 3/8-16x1-5/8 hex bolt is a 1-5/8 inch machine screw designed for high-strength fastening in industrial applications such as machinery assembly, automotive systems, and structural frameworks. Featuring a 3/8-16 UNC thread pattern, this coarse-threaded screw ensures reliable grip and durability under heavy loads. The hex head design allows for secure torque application using standard wrenches. Constructed from corrosion-resistant materials like stainless steel or grade-5 alloy, it operates effectively within temperature ranges of -40°F to +300°F. Key advantages include robust tensile strength, compatibility with standard nuts and washers, and resistance to vibration loosening. While ideal for rigid mounting, proper alignment and pre-drilled pilot holes are critical to prevent material stress. Common applications include equipment housings, engine components, and load-bearing supports where precision threading and extended length (1-5/8") are essential. Ensure compatible thread engagement depth and surface treatment (e.g., zinc-plated, galvanized) to match environmental conditions.
Parameter Specification
Thread Size 3/8-16 UNC
Thread Type Unified National Coarse (UNC)
Length 1-5/8 inch (41.28 mm)
Head Style Hex Bolt (External Hexagon)
Material Grade Grade 5 / ASTM A449
Finish Zinc Plated / Plain
Tensile Strength 120,000 psi (Minimum)
Hardness Rockwell C25 - C34
Drive Type Hex Head (9/16" Wrench Size)
Thread Direction Right-Hand
Usage General Machinery, Construction, Automotive
question:What is the warranty?
answer:The warranty covers defects in materials and workmanship for a specified period from purchase date.
question:How are refurbished product failures handled post-purchase?
answer:Refurbished items undergo testing, but defects during warranty are repaired or replaced as per policy.
question:Does the company have a professional product selection engineering team?
answer:Yes, we employ expert engineers to ensure product quality and compliance with global standards.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
question:What is the warranty?
answer:The warranty covers defects in materials and workmanship for a specified period from purchase date.
question:How are refurbished product failures handled post-purchase?
answer:Refurbished items undergo testing, but defects during warranty are repaired or replaced as per policy.
question:Does the company have a professional product selection engineering team?
answer:Yes, we employ expert engineers to ensure product quality and compliance with global standards.
question:Can the company ensure stable product supply?
answer:Yes, we maintain long-term partnerships and strict inventory management.
question:Why is there a transaction fee?
answer:The fee covers payment processing and administrative costs for secure transactions.
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