Description
Overview:
These M4 x 30mm A2 Hexagon Head Stainless Steel DIN 933 Setscrews are fully threaded bolts for general fastening in construction, machinery, and garden equipment. Made from A2 stainless steel (304 grade), they provide strong corrosion resistance for outdoor and damp environments. Each screw has a 30mm thread length (1.18 inches), suitable for securing thin to medium assemblies where a full thread is preferred. The hex head takes a standard spanner or socket for quick installation and removal. Supplied in a pack of 200 for workshop and site use, they offer consistent quality and compatibility with DIN 933 specifications. Commonly used on frames, brackets, guards, body panels, and fixtures where a reliable stainless fastener is required. MPN: 903 5173.
Key Features:
- A2 stainless steel for reliable corrosion resistance in outdoor and damp settings
- DIN 933 fully threaded hex head design for secure clamping and even load distribution
- Size: M4 x 30mm (length 30mm / 1.18 inches) for compact fastening jobs
- Hexagon head for positive drive with a spanner or socket; easy to fit and remove
- Clean, bright stainless finish for a professional look and easy identification on site
- Fully threaded shank improves grip in thin materials and through-bolt applications
- Consistent sizing and thread quality for smooth assembly and repeatable torque
- Supplied as a bulk 200-pack to cover maintenance, repairs, and production runs
Typical Applications:
Used on metal and timber brackets, guards, housings, machine covers, jigs, fixtures, garden machinery frames, outdoor furniture, marine fittings, and general construction tasks where a fully threaded M4 stainless fastener is preferred. Suitable for use in workshops, on site, and in coastal or wet environments requiring rust resistance.
Also known as:
Hex head set screw, hex cap screw, M4 x 30 bolt, stainless hex bolt, fully threaded bolt, stainless machine screw, hexagon screw, A2 stainless fastener, DIN 933 bolt.
Alternate Part Numbers:
903-5173, 9035173
Product Specifications
| L&S Part No. | 903 5173 |
|---|---|
| Unit of Sale | 1 |
| Size | M3 x 30mm |
| Key Features | - A2 stainless steel resists corrosion in damp environments - M4 x 30mm size for compact fastening - Fully threaded for secure clamping - Hex head fits standard spanner or socket - Supplied in a bulk pack of 200 |

