Hobson performance data
Type 17 Wafer Head Timber Screw 10-12, Class 3: Performance Data
A two-page DRiLLX performance data sheet for the Type 17 wafer head self drilling timber screw (T9PW3WP1012 range), 10 gauge, 12 TPI, Class 3 finish, with a low profile head. It gives pullout values in pine and hardwood, mechanical properties, sizes and installation.
What this covers
- Applications
- Pullout values
- Mechanical properties
- Dimensions
- Installation
Key things to remember
The essentials from this document in plain words. Check the full document before you rely on a figure.
- Three lengths: 25, 35 and 45mm (T9PW3WP1012025 to T9PW3WP1012045). 10 gauge, 12 TPI, 9mm low profile wafer head, Phillips #2 drive, packs of 1,000.
- C1022 hardened steel, Class 3 finish. For general fixing of timber and thin steel and side cladding, for example pergolas, fences, gates and light fittings.
- Working pullout load at 35mm embedment: 1,500N in F7 pine and 2,750N in F27 hardwood. Working loads include a factor of safety of 2.5 for timber; mean and characteristic values are also listed, all from laboratory tests.
- Characteristic shear strength 5,600N and characteristic tensile strength 9,350N (mean 6,450N and 10,750N); torsional strength 5.4Nm.
- Install with a cordless screwdriver at no more than 1,500RPM and a Phillips #2 bit. Do not over-tighten; impact drivers are not recommended.
Who it helps: Builders wanting a low profile head on pergolas, fences, gates and light fittings.
Share this document
Email it to yourself
Loading…
Related
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.