Hobson performance data
12-24 x 18 Black E-Coat Super Flat Head Self-Drilling Screw: Performance Data
Hobson's two-page DRiLLX performance data sheet for its 12-24 x 18mm super flat head self-drilling screw with a black e-coat finish, part T9PMKNP1224018. It covers pull-out values, a drill test and installation for metal to metal fixing.
What this covers
- Applications
- Features
- Pull-out values
- Drill test
- Dimensions
- Installation
Key things to remember
The essentials from this document in plain words. Check the full document before you rely on a figure.
- Metal to metal fixing for prefabricated steel wall frames. The self-drilling tip means no pre-punched holes are needed.
- Hardened C1022 steel with an e-coat black finish, which reduces friction while driving.
- Super flat head 9.5mm across and 1.5mm high. 12 gauge x 24 TPI x 18mm, Phillips #2 drive, packs of 1,000 (QFind QB76).
- Working pull-out load in purlin: 200N in 0.5mm G2, 250N in 0.7mm G2, 500N in 1.1mm G2 and 1,200N in 1.5mm G550.
- All pull-out figures are from laboratory tests on Hobson's DRiLLX screws; the working loads already include a factor of safety of 2.5 for steel.
- Drill test: through 1.5mm G550 in 3.5 seconds maximum (3 average) at 2,200 RPM with an 18kg load. Torsional strength 11.3Nm.
- Install with a cordless screwdriver at 2,200 to 3,000 RPM, keep firm, steady pressure while it drills, and do not overtighten. Impact drivers are not recommended.
Who it helps: Steel frame fabricators who need a low head that sits flat under lining.
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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.