Hobson performance data
8g Countersunk Wing Tek Screw 8-18 x 32, Class 3: Performance Data
Hobson's two-page DRiLLX performance data sheet for the 8 gauge, 18 TPI countersunk metal self-drilling screw with wings, 32mm long, Class 3 finish (part T9PG3RQ0818032). It covers applications, pull-out values, the drill point test, mechanical properties, dimensions and installation.
What this covers
- Applications
- Pull-out values
- Drill point test
- Mechanical properties
- Sizes
- Technical note
- Installation
Key things to remember
The essentials from this document in plain words. Check the full document before you rely on a figure.
- For fixing timber to metal: fences, chipboard, composite panels and timber floors. The wings make a clearance hole in the timber and break off once the screw starts drilling the metal; 6 nibs under the head let it self-embed into timber.
- C1022 hardened steel, Class 3 finish. One size: 8-18 x 32, square #2 drive, packs of 1,000.
- Pull-out working load: 300N in 0.5mm G550 plate, 1,050N in 1.5mm G550 and 2,400N in 2.5mm G450. The working loads already include factors of safety and come from laboratory tests.
- Drill point test: drills 1.5mm G450 plate in 3 seconds on average (4 seconds maximum) at 2,200 RPM under an 18kg load.
- Not recommended for fixing long lengths of timber directly to steel: movement between timber and steel from thermal expansion, humidity, building settling or overdriving can break the screw.
- Install with a cordless screwdriver set at 2,200 to 3,000 RPM, with firm, steady pressure while it drills. Do not over-tighten, and impact drivers are not recommended.
Who it helps: Builders fixing timber, flooring or panels to light steel.
Share this document
Email it to yourself
Loading…
This document is published by Hobson Engineering, who supply this range to us. We show it here in full so you can read it next to the product; the summary above is ours. Read it on this page or download the PDF. For the most current version, ask us.