RS PRO, M3 Brass Threaded Insert diameter 4mm Depth 4.78mm

Technical Reference
Legislation and Compliance
RoHS Certificate of Compliance
COO (Country of Origin): IN
Product Details

Brass Threaded Insert - Expansion insert

Expansion inserts are suitable for use with most plastic materials, using either through or blind holes. Knurled outer diameter with expansion slots prevent rotation or loosening due to vibration and ensures consistent self-locking pressure on the fixing screws.

Available with Flush Head (RS 278-534, RS 278-540, RS 278-556, RS 278-562, RS 278-578)
Available with Flange Head (RS 278-584, RS 278-590, RS 278-607, RS 278-613, RS 278-629)

Features and benefits:

• Brass inserts are durable and resistant to corrosion
• Knurled for grip
• Simple press or hammer in
• Can be used in drilled or moulded holes

Attribute Value
Thread Size M3
Fixing Hole Diameter 4mm
Body Outside Diameter 4.22mm
Body Depth 4.78mm
Material Brass
Thickness of Material Minimum 6.7mm
742 In stock for FREE next working day delivery
Price 1 Bag of 100
£ 9.81
(exc. VAT)
£ 11.77
(inc. VAT)
Per Bag
Per unit*
1 +
*price indicative