RS PRO Slot M3 Countersunk Stainless Steel Machine Screw 40.0 mm Metric

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Subtotal (1 bag of 100 units)*

£7.52

(exc. VAT)

£9.02

(inc. VAT)

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  • Plus 67 unit(s) shipping from 30 March 2026
  • Plus 26 unit(s) shipping from 30 March 2026
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Per unit*
1 - 4£7.52£0.075
5 - 9£7.15£0.072
10 - 29£6.78£0.068
30 +£6.32£0.063

*price indicative

RS Stock No.:
914-1652
Distrelec Article No.:
304-20-118
Brand:
RS PRO
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Brand

RS PRO

Thread

Metric

Product Type

Machine Screw

Head Shape

Countersunk

Drive Type

Slot

Screw Diameter

M3

Standards/Approvals

DIN 963

Material

Stainless Steel

Finish

Plain

Length

40.0mm

Grade

A2

RS PRO M3 Countersunk Head Screws, 40 mm Stainless Steel Slot A2 304


Use these countersunk screws from RS PRO to secure your electrical devices firmly in place. The 40 mm length bores deep into sockets and fittings to keep your appliances fixed and dependable.

Corrosion won't be able to take hold even after repeated usage thanks to the screws' A2 grade stainless steel material. The helical blades are threaded in compliance with DIN 85 to ensure they screw in evenly. The outer layer of 18% chromium and 8% nickel stops abrasion damage and withstands any potential chips or dents.

The screws can handle heat up to +800°C so they're useful in environments exposed to extreme temperatures. The countersunk design pushes down into the joint to keep the surface applied to smooth.

Features and Benefits


• Slot drive type

• Countersunk head shape

• Metric length of 40 mm

• Stainless steel material

• A2 304 stainless steel type

• Thread pitch of 0.5 mm

• Metric thread size of M3

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