Flat Head Imperial Screws – Precision Fasteners for Every Application
Our flat head imperial screws are the ideal choice for all projects requiring a flush, countersunk, and visually appealing finish. The conical head sits perfectly level with the material surface, creating a clean and obstruction-free result without protruding edges . Manufactured to the US standard (UNF fine thread), they guarantee a perfect fit for vehicles, motorcycles, industrial equipment, agricultural machinery, Trax systems, road construction, and even archery equipment.
A Wide Range of Materials for Diverse Needs
Stainless Steel (INOX): Offers excellent corrosion resistance, making it perfect for outdoor use, marine environments, and demanding industrial applications .
Zinc-Plated Steel: Provides a shiny, wear-resistant, and smooth surface. Ideal for decorative purposes or where additional protection against abrasion is required.
Plain Steel (Uncoated): The untreated version for those who prefer a classic look or plan to apply their own surface treatment.
The Right Drive for Every Task
Choosing the correct drive type is crucial for a secure and powerful assembly . We offer all common drive variants:
Socket / Hexagon Socket: Enables optimum torque transmission and is a universal standard.
Torx®: The star-shaped profile offers maximum power transmission and minimizes the risk of slipping or "cam-out" .
Phillips / Cross-Head: The proven classic for universal use.
Slotted / Flat-Head: The traditional drive type for restorations and nostalgic applications.
Benefit from our many years of experience and extensive stock. Visit us at www.zoll-schrauben.ch – powered by Equipe Bachofner GmbH, your specialist for classic vehicles and precise fastening technology
7/16"-20 x 2" Countersunk Screw (UNF) Overall length with head: 2" = 50.80 mm Hex socket size: 1/4" Hardness: RC 39 -44 Class fit: 3A Similar in design to DIN 7991
7/16"-20 x 2" Countersunk Screw (UNF) Overall length with head: 2" = 50.80 mm Hex socket size: 1/4" Hardness: RC 39 -44 Class fit: 3A Similar in design to DIN 7991
No. 0-80 UNF x 3/16" Countersunk Screw allen key
No. 0-80 UNF x 1/4" Countersunk Screw allen key
No. 4-48 UNF x 1/4" Countersunk Screw allen key
No. 4-48 UNF x 3/8" Countersunk Screw allen key
No. 6-40 UNF x 1/4" Countersunk Screw allen key
No. 6-40 UNF x 3/8" Countersunk Screw allen key
Countersunk Screw allen key No. 6-40 UNF x 1/2"
Countersunk Screw allen key No. 6-40 UNF x 3/4"
Countersunk screw 1/4"-28UNF x 5/8", hex socket, 12.9 grade, blank
