Selectron 7.5x60 Buldex Screw (200 Pieces)

Selectron 7.5×60 Buldex Screw — 200 Pieces

The Selectron 7.5×60 mm Buldex Screw is a self‑tapping fastener designed for direct installation without wall plugs into hard and porous substrates including concrete, aerated concrete, and brick. Its short, robust body makes it ideal for securing PVC frames, lightweight structures, shelving, and brackets; it forms its own thread inside the pilot hole to bond fully with the base material — eliminating both plug cost and extended installation time. The economical 200‑piece pack offers reliable, everyday supply for tradespeople, renovation crews, and suppliers.

Technical Specifications

• Brand: Selectron
• Type: Buldex Screw / Plug‑Free Masonry Fastener
• Diameter: 7.5 mm
• Overall Length: 60 mm
• Head Style: Countersunk — T30 Torx (Star)
• Point Style: Sharp Point
• Thread Profile: Special Sharp Design — self‑tapping with integrated debris‑clearance channels to prevent jamming
• Material: Hardened and Tempered High‑Carbon Steel
• Coating: Electro‑Galvanised Zinc — corrosion resistant
• Recommended Pilot Hole: Concrete/Solid Brick: 6 mm | Aerated Concrete: 5 mm
• Compatible Substrates: Concrete, Aerated Concrete, Solid Brick, Hollow Brick, Natural Stone
• Compatible Fixtures: PVC, Aluminium, Timber, Light‑Gauge Steel Sections
• Packaging: 200 Pieces per Box

Applications

• Fixing slim‑profile PVC and aluminium window and door frames
• Securing timber battens, furring strips, and lightweight frames to concrete walls
• Mounting wall shelves, cabinet hangers, electrical boxes, and brackets
• Installing decorative elements and light‑load fixtures on aerated concrete walls
• Attaching interior cladding, panels, and partition components
• Renovation, repair, and small‑scale refurbishment work
• Anchoring suspended ceilings and light‑duty framework bases
• Daily stock and high‑volume use by professional crews

Product Advantages

• Plug‑Free Installation: No separate wall plug required — saves material cost and reduces labour time
• 60 mm Ideal Length: Sufficient embedment for standard thin sections; no through‑protrusion, delivering neat installation
• Self‑Tapping Thread: Forms its own thread within the pilot hole; debris channels prevent binding and ensure full seating
• T30 Torx Drive: Secure bit engagement eliminates slippage and cam‑out; delivers speed and reliability in high‑volume work
• Zinc Coating: Long‑lasting corrosion protection for indoor and sheltered outdoor environments
• Hardened Steel: Resists bending and breaking during installation; provides deep, consistent holding power
• Removable and Reusable: Not a permanent, irreversible anchor — can be easily removed and re‑fastened as needed
• 200‑Piece Box: Uninterrupted supply for medium‑scale projects; competitive unit pricing for cost‑effective stockholding

Installation Guidelines

• Drill a 6 mm pilot hole in concrete or solid brick; use 5 mm for aerated concrete; make the hole approx. 5 mm deeper than the screw’s intended embedment
• Clear dust from the hole using a brush or compressed air — residual debris reduces holding power
• Drive the screw at a true right angle to the surface; angled installation weakens thread engagement and may break the screw
• Use a T30 Torx driver bit with a torque‑controlled screwdriver; do not over‑tighten
• Use reduced speed and moderate torque in hollow brick or lightweight masonry; internal webs may fracture under excessive force
• Select stainless steel versions for permanent outdoor exposure or consistently damp environments
• For high‑load‑critical applications, determine fastener count and spacing based on structural calculations
• Store in dry conditions; prolonged exposure to moisture shortens coating life

Frequently Asked Questions

Does it deliver reliable grip without a wall plug?
Yes — the custom thread profile cuts its own secure bond within the prepared pilot hole; no separate plug is required.

How does it differ from the 7.5×80 version?
This model is 60 mm long, designed for thinner sections and shallower embedment; the 80 mm version is better suited to thick frames and connections requiring deeper penetration.

What load can it carry?
Capacity varies with base material; it delivers dependable performance in concrete — refer to manufacturer values for critical installations.

Will it rust?
Zinc electro‑plating is sufficient for indoor and sheltered outdoor use; stainless steel is recommended for permanent water exposure.