#2 #6 1/2 UNC/UNF/BSW Grade 10.9 Screw Imperial Countersunk Flat Cup Hexagon Precision Screw

Regular price $6.32 USD

Regular price ~~$6.32 USD~~ Sale price $6.32 USD

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Color classification 2 #-56 * 1/8 (500 pieces)Variant sold out or unavailable 2 #-56 * 5/32 (500 pieces)Variant sold out or unavailable 2 #-56 * 3/16 (500 pieces)Variant sold out or unavailable 2 #-56 * 1/4 (500 pieces)Variant sold out or unavailable 2 #-56 * 5/16 (500 pieces)Variant sold out or unavailable 2 #-56 * 3/8 (500 pieces)Variant sold out or unavailable 2 #-56 * 1/2 (500 pieces)Variant sold out or unavailable 2 #-56 * 5/8 (200 pieces)Variant sold out or unavailable 2 #-56 * 3/4 (200 pieces)Variant sold out or unavailable 2 #-56 * 1 (200 pieces)Variant sold out or unavailable 4 #-40 * 3/16 (200 pieces)Variant sold out or unavailable 4 #-40 * 1/4 (200 pieces)Variant sold out or unavailable 4 #-40 * 5/16 (200 pieces)Variant sold out or unavailable 4 #-40 * 3/8 (200 pieces)Variant sold out or unavailable 4 #-40 * 1/2 (200 pieces)Variant sold out or unavailable 4 #-40 * 5/8 (200 pieces)Variant sold out or unavailable 4 #-40 * 3/4 (100 pieces)Variant sold out or unavailable 4 #-40 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Professional Grade 10.9 high-strength imperial screws, precision-engineered for industrial assembly, machinery installation, and precision fastening applications that require reliable performance and a flush finish. Designed to meet American and British imperial standards, these countersunk (flat cup) hexagon precision screws are available in #2, #6, 1/2 sizes with UNC/UNF/BSW thread types—perfect for projects using imperial-measured equipment, tools, and components.

Crafted with Grade 10.9 high-strength alloy steel, these screws deliver exceptional tensile strength and torque resistance, making them suitable for heavy-duty industrial use, machinery repair, and high-stress applications where standard screws may fail. The countersunk (flat cup) head design ensures a flush, low-profile installation that won’t protrude or interfere with mechanical movement, providing a clean finish while preventing snags or damage to adjacent components.

The precision-machined inner hexagon (hex) drive offers a secure grip during installation, preventing slipping, stripping, or cross-threading—even when applying high torque. Available in UNC (coarse thread), UNF (fine thread), and BSW (British standard thread) options, these screws offer universal compatibility with imperial nuts, washers, and mechanical parts, adapting to diverse industrial and commercial needs.

Engineered for precision and durability, the threads are rolled to ensure uniformity and tightness, creating an anti-loosening fit that resists slippage under continuous mechanical vibration, heavy loads, or temperature fluctuations. Whether used in industrial machinery, automotive components, aerospace auxiliary parts, or precision instruments, these imperial countersunk screws meet strict quality standards, ensuring long-term reliability and reducing maintenance downtime.

Easy to install with standard imperial hex keys (Allen keys), no special tools required, these screws streamline assembly and repair processes. Their versatile design makes them ideal for both professional industrial use and specialized projects that demand imperial measurements—optimized for Google search and Shopify’s product page best practices to attract your target buyers seeking high-quality imperial hardware.

Core Features (SEO-Friendly, Keyword-Rich)

Grade 10.9 high-strength alloy steel: exceptional tensile strength and torque resistance for heavy-duty industrial applications.
Imperial specifications: #2, #6, 1/2 sizes with UNC/UNF/BSW thread types, compatible with American/British imperial equipment.
Countersunk (flat cup) head design: flush, low-profile installation, no interference with mechanical movement, clean finish.
Precision inner hexagon (hex) drive: secure grip, no slipping or stripping, easy torque application with standard hex keys.
Multiple thread options: UNC (coarse), UNF (fine), BSW (British standard) to fit diverse industrial needs.
Precision-rolled threads: uniform, tight fit, anti-loosening performance under vibration and heavy loads.
Industrial-grade durability: resistant to wear, deformation, and fatigue for long-term reliable use.
Universal compatibility: works with standard imperial nuts, washers, and mechanical components.

Ideal For

Industrial machinery manufacturers and maintenance teams (imperial-equipped)
Automotive repair shops and component manufacturers (American/British standards)
Aerospace auxiliary assembly and precision instrument production
Commercial and industrial construction projects using imperial measurements
Hardware supply companies specializing in imperial fasteners
Professional engineers and maintenance technicians
Specialized DIY projects requiring high-strength imperial screws

Why Choose Our Imperial Countersunk Screws?

Unlike generic imperial screws, our Grade 10.9 precision screws are engineered for high-strength performance and strict compatibility with UNC/UNF/BSW thread standards. The countersunk flat cup design delivers a professional flush finish, while the hex drive ensures easy, secure installation. Whether you need to replace worn fasteners in imperial machinery, assemble new equipment, or complete a specialized project, these screws offer the precision, durability, and versatility that imperial hardware buyers demand—optimized to rank well on Google and convert Shopify visitors into customers.