S-91775A650 Length 5/8" Tapping Screws

Tapping Screws

0434FA00008 Tapping Screws
0434FA00008 Tapping Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 0434FA00008
Equivalent to mcmaster :
91775A650

Basic Information

Tapping Screw Type A/AB
System of Measurement Inch

Head Parameters

Head Type Oval
Head Diameter 0.262"
Head Height 0.128"
Oval Head Profile Standard
Oval Top Height 0.08"

Dimensions

Length 5/8"
Shank Cross Section Round

Thread Parameters

Screw Size No. 6
Thread Diameter 0.138"
Approximate Threads per Inch 18
Thread Direction Right Hand
Threading Fully Threaded

Tip & Drive Parameters

Tip Type Pointed
Drive Style Phillips
Drive Size No. 2
Drill Bit Size No. 32
Drill Bit Diameter 0.116"
Countersink Angle 82°
Tapping Method Thread Forming

Material & Strength

Material Black-Oxide Steel

Temperature & Environment

For Use In Sheet Metal
REACH Compliant
RoHS Compliant

Installation & Application

Maximum Drilling Thickness 0.025"
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Eliminates pre-tapped holes with thread forming technology, reducing installation time and labor costs in sheet metal assemblies.
  • Enhanced corrosion resistance from the Black-Oxide Steel finish, ensuring long-term durability in harsh industrial environments.
  • Secure, flush seating with the standard oval head and 82° countersink angle, providing a smooth finish and improved load distribution.
  • Optimized for No. 32 drill bits and 0.025" maximum drilling thickness, offering precise compatibility and reliable performance in thin sheet metal.
  • Easy installation and removal with the Phillips No. 2 drive, minimizing cam-out and enhancing operator efficiency.
  • Full thread engagement along the 5/8" length for strong, vibration-resistant fastening in demanding applications.
  • Compliance with environmental standards including RoHS 3 and REACH, ensuring safe, sustainable use in global supply chains.

Professional Applications & Engineering Value

These No. 6 x 5/8" Black-Oxide Steel tapping screws are engineered to address common challenges in sheet metal fabrication, such as material cracking and loose fasteners. The thread forming (A/AB type) design displaces metal to create strong, permanent threads without pre-tapping, reducing assembly steps and tooling costs. The Phillips oval head ensures a clean, flush finish, while the 0.138" thread diameter and 18 TPI provide excellent grip in thin materials up to 0.025" thick. Ideal for HVAC, electronics enclosures, and automotive panels, these screws deliver reliable, vibration-resistant performance with minimal risk of corrosion, making them a cost-effective solution for high-volume industrial applications.

Specification Summary & Compliance

This product features precise inch system measurements, including a No. 6 screw size, 5/8" length, and fully threaded right-hand threading. It adheres to standard Class 2A thread tolerances for consistent fit and is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory acceptance in industrial markets.

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