Description
Product Overview
Hillman heavy-duty bolts are engineered for superior performance in industrial and mechanical applications. These Grade 8 bolts feature a 1/4-20 UNC thread with a right-hand style, ensuring secure fastening in high-stress environments. The matte black exterior finish not only provides corrosion resistance but also enhances durability, making them suitable for long-term use. With a cylindrical shape and round head style, they offer easy installation and a professional appearance. Each bolt has a cutting diameter of 0.25 inches and is part of a 10-piece set, backed by Hillman’s reputation for quality and reliability in fastening solutions.

Usage
These bolts are ideal for a wide range of applications, including skateboards, shock absorber mountings, and other mechanical assemblies where vibration reduction is critical. They are commonly used in industrial settings, automotive repairs, and DIY projects that require robust fastening. Target users include mechanics, engineers, and hobbyists who need dependable hardware for equipment that undergoes frequent movement or stress. The bolts help minimize vibrations, contributing to smoother operation and extended lifespan of connected components.
Why Choose Us
Hillman bolts stand out due to their Grade 8 hardness, which ensures high tensile strength and resistance to wear and tear. The heavy-duty manufacturer grade and precise threading provide a secure fit, reducing the risk of loosening under vibration. Additionally, the matte black finish offers enhanced protection against rust and environmental factors, making them a cost-effective choice for both indoor and outdoor use. With consistent quality control and a focus on user safety, these bolts deliver reliable performance that meets industrial standards.
Key Features
- Grade 8 hardness for maximum durability and strength in demanding applications
- 1/4-20 UNC thread design ensures compatibility with standard nuts and fittings
- Matte black finish resists corrosion and provides a sleek, professional look
- Heavy-duty construction reduces vibrations in mechanical assemblies
- 10-piece pack offers versatility for multiple projects and replacements
FAQ
What materials are these bolts made from?
These bolts are constructed from high-strength steel with a Grade 8 hardness rating, ensuring they can withstand significant stress and vibration without failing.
Are these bolts suitable for outdoor use?
Yes, the matte black finish provides corrosion resistance, making them appropriate for both indoor and outdoor applications in various weather conditions.
How many bolts are included in a pack?
Each pack contains 10 bolts, allowing for multiple installations or replacements in projects like skateboards or industrial equipment.
Can I use these bolts with standard nuts?
Absolutely, the 1/4-20 UNC thread is compatible with most standard nuts and fittings, ensuring easy integration into existing setups.
What is the primary benefit of the heavy-duty grade?
The heavy-duty grade offers enhanced strength and reliability, reducing the likelihood of bolt failure in high-vibration environments such as shock absorbers or machinery.










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