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Nord-Lock 7/8in Locking Washer Oversized Stainless Steel 1129
Nord-Lock 7/8in Locking Washer Oversized Stainless Steel 1129 is an EN 1.4404 stainless wedge-locking washer pair for 7/8 in flanged stainless bolts on oversized and slotted holes.
- The pair covers a flanged 7/8 in stainless face with a 42.0 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
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Nord-Lock 7/8in Locking Washer Oversized Stainless Steel 1129
Nord-Lock 7/8in Locking Washer Oversized Stainless Steel 1129 is an EN 1.4404 stainless wedge-locking washer pair with an enlarged 42.0 mm outer diameter for 7/8 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 42.0 mm OD
- EN 1.4404
- 3.2 mm thickness
- 520 HV0.05 min
- Surface hardened
- General stainless without chlorides or acids
Applications
- Oversized 7/8 in stainless holes with a flanged stainless fastener.
- Slotted 7/8 in stainless holes on general stainless joints.
- Soft stainless faces under 7/8 in flanged stainless bolts.
- General stainless joints without chlorides or acids.
Technical Specifications
| Property | Value |
|---|---|
| Bolt size | 7/8 in |
| Inner diameter (d) | 23.4 mm |
| Outer diameter (D) | 42.0 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 NL22spss used on?
Nord-Lock NL22spss is used on oversized and slotted stainless holes with 7/8 in flanged stainless bolts, without chlorides or acids.
What size is Nord-Lock NL22spss?
Nord-Lock NL22spss is a 7/8 in pair with a 23.4 mm inner diameter, 42.0 mm outer diameter, and 3.2 mm thickness.
What EN 1.4404 stainless does Nord-Lock NL22spss hold on chloride-free joints?
Nord-Lock NL22spss is EN 1.4404 stainless for general joints without chlorides or acids.
What 42.0 mm SP face does Nord-Lock NL22spss cover on slotted stainless?
Nord-Lock NL22spss has a 42.0 mm outer diameter for oversized and slotted 7/8 in stainless holes.
What 520 HV0.05 min bar does Nord-Lock NL22spss hold after surface hardening?
Nord-Lock NL22spss has a surface-hardened hardness of 520 HV0.05 min.
What -160 C to 500 C window does Nord-Lock NL22spss hold on EN 1.4404?
Nord-Lock NL22spss holds -160 C to 500 C on EN 1.4404 stainless.
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