Nord-Lock 1/2in Locking Washer Oversized Stainless Steel 1110

Nord-Lock 1/2in Locking Washer Oversized Stainless Steel 1110 is an EN 1.4404 stainless wedge-locking washer pair for 1/2 in flanged stainless bolts on oversized and slotted holes.

The pair covers a flanged 1/2 in stainless face with a 25.4 mm outer diameter
EN 1.4404 stainless is used on general joints without chlorides or acids
Surface-hardened stainless holds 520 HV0.05 min hardness

$5.39

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Nord-Lock 1/2in Locking Washer Oversized Stainless Steel 1110

Nord-Lock 1/2in Locking Washer Oversized Stainless Steel 1110 is an EN 1.4404 stainless wedge-locking washer pair with an enlarged 25.4 mm outer diameter for 1/2 in flanged stainless bolts. It is used on oversized or slotted stainless holes in general stainless joints without chlorides or acids. Surface-hardened stainless at 520 HV0.05 min keeps the pair on those faces.

Key Features

Enlarged 25.4 mm OD
EN 1.4404
3.2 mm thickness
520 HV0.05 min
Surface hardened
General stainless without chlorides or acids

Applications

Oversized 1/2 in stainless holes with a flanged stainless fastener.
Slotted 1/2 in stainless holes on general stainless joints.
Soft stainless faces under 1/2 in flanged stainless bolts.
General stainless joints without chlorides or acids.

Technical Specifications

Property	Value
Bolt size	1/2 in
Inner diameter (d)	13.5 mm
Outer diameter (D)	25.4 mm
Thickness (T)	3.2 mm
Material	EN 1.4404 stainless
Hardness	520 HV0.05 min
Temperature range	-160 C to 500 C
Hardening	Surface hardened
Bolt grades	Up to A4-80

Product documents: Nord-Lock original washers 2026 user manual

Frequently Asked Questions

What work is Nord-Lock NL1/2spss used on?
Nord-Lock NL1/2spss is used on oversized and slotted stainless holes with 1/2 in flanged stainless bolts, without chlorides or acids.

What size is Nord-Lock NL1/2spss?
Nord-Lock NL1/2spss is a 1/2 in pair with a 13.5 mm inner diameter, 25.4 mm outer diameter, and 3.2 mm thickness.

What EN 1.4404 alloy does Nord-Lock NL1/2spss use on chloride-free stainless joints?
Nord-Lock NL1/2spss is EN 1.4404 stainless for general joints without chlorides or acids.

What 25.4 mm oversized stainless face does Nord-Lock NL1/2spss cover?
Nord-Lock NL1/2spss has a 25.4 mm outer diameter for oversized and slotted 1/2 in stainless holes.

What 3.2 mm SP thickness does Nord-Lock NL1/2spss hold on 1/2 in stainless?
Nord-Lock NL1/2spss has a 3.2 mm thickness on the oversized 1/2 in stainless pair.

What 520 HV0.05 min hardness does Nord-Lock NL1/2spss meet after surface hardening?
Nord-Lock NL1/2spss has a surface-hardened hardness of 520 HV0.05 min.

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