Hobson technical document
DrillX Screw Technical Data Chart (A1 Poster): Points, Heads, Drives and Gauges
An A1 wall poster of screw technical specifications for Hobson's DrillX range. It shows point types, head types and drive types, a screw gauge to diameter table, the parts of a screw, an inch and metric length ruler, embedment rules, and the range's coatings and features.
What this covers
- Point types
- Head types
- Drive types
- Screw gauge and length
- Screw embedment
- Coatings and features
Applies to Chipboard Screw, Metal Tek Screw With XGRiP, Needle Point Screw, Plasterboard Screw, Type A Button Post Torx Screw, Roofing & Cladding Screws, S500 Insulated Panel Screw (XGRiP), Tek Screws (Self-Drilling Metal Screws), Stitching Screw, Type 17 Hex Screw With XGRiP, Type 17 Screws (Batten & Decking Screws), Type 17 Screw With XGRiP and 1 more.
Key things to remember
The essentials from this document in plain words. Check the full document before you rely on a figure.
- Screw gauge 0 to 18 by diameter: 8g is 4.2mm (0.164"), 10g 4.8mm (0.190"), 12g 5.5mm (0.216"), 14g 6.3mm (0.242") and 18g 7.7mm (0.303").
- Point types by use: metal point, S500 deep driller for thick metal, metal framing, Type 17 for timber, jmaX for metal plate to timber, vmaX for metal and timber, needle point, and a point for chipboard, treated pine or timber.
- Covers head types (hex flange, bugle batten, wafer, button and more) and drive types (hex, Torx, square, Phillips, Pozi, one way, trilobular and more).
- Timber: as a general rule, the minimum embedment to achieve maximum pull-out values is 25mm for 12g and 35mm for 14g. Metal: at least three threads must protrude to achieve maximum pull-out values.
- Fastener length is generally measured from where the material surface is assumed to be to the end of the fastener.
- vmaX is for roof sheeting to thin metal battens, timber trusses and steel purlins up to 1.9mm thick. jmaX self-drills and fixes metal plate to timber without splitting.
- Coatings: E-Coat reduces friction during installation with moderate corrosion protection; TYKOTE is formulated to resist treated pine chemicals.
Who it helps: Builders, roofers and staff matching a screw gauge, point or drive to the job.
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