Hobson did you know flyer
Galvanised Class 8.8 Hex Set Screw: Sizes and Features (Did You Know)
Hobson's one-page "Did You Know" flyer for its hot dip galvanised class 8.8 hex set screw (part BS88GCM). It lists every size from M6 to M42 with its thread pitch and the lengths it comes in, and the reasons to choose it over a mild steel set screw.
What this covers
- Sizes and thread pitch
- Length ranges
- Features
Key things to remember
The essentials from this document in plain words. Check the full document before you rely on a figure.
- Hex set screw, hot dip galvanised, class 8.8 to AS 1110.2.
- Ten sizes, M6 to M42: M6 1.00mm pitch (12 to 50mm long), M8 1.25 (12 to 100), M10 1.50 (16 to 150), M12 1.75 (20 to 150), M16 2.00 (25 to 250).
- Larger sizes: M20 2.50mm pitch (30 to 200mm long), M24 3.00 (40 to 250), M30 3.50 (80 to 200), M36 4.00 (70 to 300), M42 4.50 (100 to 400).
- Can be screwed into tapped holes.
- Higher tensile capacity than a mild steel set screw, and better fatigue resistance than a bolt, according to Hobson.
- Galvanised for improved corrosion resistance.
- Part numbers run BS88GCM06 (M6) to BS88GCM42 (M42).
Who it helps: Anyone choosing a high tensile galvanised set screw for a tapped hole or a fully threaded fixing, and staff checking which lengths a size comes in.
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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.