Description
Product Overview
The Mr. Pen Nuts and Bolts Assortment Kit is engineered for precision, durability, and versatility. Crafted from premium 304 stainless steel, each component resists corrosion, maintains structural integrity, and delivers a smooth finish that reduces wear over time. The kit comprises 900 meticulously selected pieces, ranging from Phillips flat head screws to a full spectrum of nuts, washers, and bolts in sizes #4‑40, #6‑32, #8‑32, and #10‑24. Every item is measured to exact tolerances, ensuring a perfect fit for a wide array of applications, from delicate electronics assemblies to robust mechanical constructions. The robust compartmentalized storage box features molded inserts that securely hold each part, preventing loss and simplifying inventory management. With dimensions of 1 × 2 × 0.1 inches and a weight of 1.79 lb, the kit balances portability with comprehensive coverage, making it an indispensable resource for professionals and hobbyists alike.
![[Product front view showing all components]](https://www.easyareas.store/wp-content/uploads/2026/07/0d3c48df16004fe39c078c2592d5fd59.jpg)
Usage
Designed for both everyday DIY projects and demanding industrial environments, this assortment adapts to a multitude of scenarios. Homeowners will find it invaluable for assembling furniture, repairing appliances, and performing routine maintenance tasks. Automotive technicians benefit from the precise thread sizes when securing engine components, while electricians rely on the non‑magnetic stainless steel to avoid interference with sensitive circuitry. In manufacturing settings, the kit serves as a quick‑access inventory for line workers who need to replace fasteners without delay. The clear labeling on each compartment allows users to locate the exact size and type within seconds, reducing downtime and enhancing productivity. Whether you are building a prototype, conducting a repair, or maintaining equipment, the Mr. Pen kit provides the confidence that every connection will be secure and long‑lasting.
Why Choose Us
Choosing the Mr. Pen Nuts and Bolts Assortment Kit means selecting a product backed by rigorous quality control and a commitment to customer satisfaction. Each piece undergoes a multi‑stage inspection process, verifying material composition, dimensional accuracy, and surface finish before it reaches the packaging stage. Our stainless steel is sourced from reputable mills, guaranteeing a minimum of 304 grade compliance, which translates to superior corrosion resistance even in harsh environments. The kit’s design reflects feedback from engineers, mechanics, and DIY enthusiasts, resulting in a storage solution that minimizes clutter while maximizing accessibility. Additionally, Mr. Pen offers responsive after‑sales support, including technical assistance, replacement parts, and a hassle‑free return policy, ensuring that your investment remains protected throughout its lifecycle.
Key Features
- Premium 304 stainless steel construction delivers rust resistance and long‑term durability.
- Comprehensive assortment of 900 pieces includes Phillips flat head screws, nuts, washers, and multiple size ranges.
- Durable compartmentalized storage box provides quick identification and prevents loss of small components.
- Versatile application across DIY home projects, automotive repairs, electronics, and industrial maintenance.
- Responsive customer support and hassle‑free warranty for peace of mind.
FAQ
What sizes are included in the kit?
The kit contains a broad range of sizes, specifically #4‑40, #6‑32, #8‑32, and #10‑24 screws, as well as M3, M4, M5, and M6 bolts and nuts covering lengths from 5 mm up to 35 mm.
Is the stainless steel truly corrosion‑resistant?
Yes, all fasteners are made from 304 stainless steel, which offers excellent resistance to rust and oxidation, even in humid or marine environments.
Can I use these fasteners for electronic assemblies?
Absolutely. The non‑magnetic nature of 304 stainless steel makes these components safe for use in electronic and electrical applications without causing interference.
What is the warranty period for this product?
Mr. Pen provides a one‑year limited warranty covering manufacturing defects, ensuring you receive a replacement or refund if the product does not meet quality standards.
How do I contact customer support for assistance?
You can reach our support team via the contact form on the Mr. Pen website, by email at [email protected], or by calling the toll‑free number listed on the product page. Our representatives are available Monday through Friday, 9 am–5 pm EST.




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