
Button Head Pin Torx Security Screws
Tamper-Resistant 6-Lobe Machine Screws with Center Security Pin
Button Head Pin Torx Security Screws use a low rounded head with a tamper-resistant six-lobe recess and central security pin. The pin blocks ordinary solid-tip drivers, while a compatible security bit with a center hole enables authorized installation and maintenance.
Product Overview
This specific security fastener combines a broad low-domed Button Head, an internal six-lobe recess, a concentric raised center pin and a conventional machine-threaded shank. Without the center pin, the drive is an ordinary six-lobe recess rather than the product defined on this page.
The center pin prevents a normal solid-tip driver from seating fully. A matched six-lobe security bit with a center bore fits over the pin and engages the lobes, discouraging unauthorized removal with standard tools while allowing authorized service.
Buyers should specify thread diameter, pitch and length, head dimensions, security-recess size, center-pin geometry, material, finish, mating thread, matched-bit requirement, quantity and any drawing or sample.
Technical Specifications
Security Recess, Center Pin & Driver Matching
Material, Size & Finish Options
Security Drive & OEM Manufacturing
Diameter, pitch, length, thread length, head diameter and head height.
Six-lobe size, recess depth, center-pin diameter and center-pin height matched to the required security bit.
Custom head, thread length, metric fine or UNC/UNF thread, finish and matched driver bit. Send size, material, finish, recess, mating thread, application, quantity and drawing/sample.
Bags, boxes, export cartons, pallets, separately packed security bits where ordered, labels, part numbers and authorized private label.
Recess, Pin & Thread Quality
Inspection covers head diameter, height, dome and bearing surface; recess symmetry, depth and burrs; pin diameter, height, concentricity and deformation; full security-bit seating; thread profile and GO/NO-GO fit; plus material and coating. Documentation may include MTC, dimensional, recess, driver-fit, thread or coating reports and third-party support where required.
Applications
Controlled tool access with authorized serviceability for industrial and public equipment.

Restricts casual access with ordinary tools while allowing authorized service using the matched security driver.
Stainless configurations discourage unauthorized removal on compatible public and outdoor hardware.
Controls routine access while preserving necessary maintenance removal.
Low-profile 304 or 316 fasteners for compatible exterior fittings, signs and public installations.
Drawing-based supply according to thread, recess, center-pin geometry, material, coating and tooling requirement.
Frequently Asked Questions
What is a Pin Torx Security Screw?
It uses a six-lobe recessed drive with a center pin. The pin prevents a normal solid-tip driver from fully seating, so installation and removal require a compatible security bit with a center hole.
Are Pin Torx Screws completely tamper proof?
No. They are tamper resistant because they discourage removal using ordinary tools. Compatible security drivers allow authorized installation and maintenance.
What is the difference between a normal Torx Screw and Pin Torx Security Screw?
A normal six-lobe screw has an open recess. A Pin Torx Security Screw adds a center pin and therefore requires a matching driver with a center bore.
Can these Security Screws be supplied in 304 or 316 Stainless Steel?
Yes. VALTOR can supply 304/A2, 316/A4 and carbon-steel configurations according to corrosion environment, mechanical requirement and application.
Can VALTOR supply matching Security Bits?
Matching security bits can be supplied according to the selected recess size and order requirement. Confirm screw size, security-drive size and tooling needs in the RFQ.
Related Products
Share thread, length, button-head dimensions, security recess, center pin, material, finish, matched-bit requirement, drawing and quantity with VALTOR.





