How to choose the right wire diameter?

Consult your project's technical manual or industry best practices for the recommended wire diameter. The .021" (0.53mm) gauge is suitable for many common fastener sizes, but thicker gauges offer more strength for larger bolts or higher tension requirements.

Is this wire suitable for marine or coastal use in India?

Yes, the T302/304 stainless steel construction offers good corrosion resistance against rust and oxidation, making it suitable for humid, marine, and outdoor settings common in coastal India. For extreme chemical exposure, grade 316 offers superior resistance.

What are the benefits of using safety lock wire?

Safety lock wire prevents fasteners like nuts and bolts from loosening due to vibration, thermal cycling, or mechanical stress. This reduces the risk of mechanical failure and improves the long-term operational stability of critical components in aircraft, automotive, and industrial machinery.

Can I use this wire for general DIY or craft projects?

While designed for professional applications, this wire can be used for robust DIY projects requiring strong, corrosion-resistant fastening. Its reliable twist performance makes it manageable for tasks like securing garden structures or reinforcing components, though its primary strength lies in critical safety applications.

How to buy an original WCS .021" Stainless Steel Safety Lock Wire in India?

Purchase directly from crowcrowcrow.com to ensure you receive an original, factory-sealed product sourced from authorized US retailers and authorized brand partners. All customs duties and GST are pre-paid and included in the listed price. Your order is shipped via ExpressBox with tracking to your Indian pincode.

What is the difference between 304 and 316 stainless steel wire?

304 stainless wire offers strong general corrosion resistance and suits most indoor and dry applications, while 316 adds molybdenum for superior resistance in marine, coastal, and chemical environments. Choose the grade that matches your exposure conditions.

Are there any side effects of using this wire?

The primary consideration is the presence of Nickel Metallic, which carries a California Proposition 65 warning for potential long-term exposure risks. Ensure proper handling and avoid direct prolonged skin contact, especially if you have nickel sensitivities.

WCS .021" Stainless Steel Safety Lock Wire | NASM20995C

About this item

WCS .021" Stainless Steel Safety Lock Wire provides critical fastener security for high-vibration environments. Manufactured to NASM20995C, MS20995C, ASTM A580 Condition A, and AMS5697 standards, this T302/304 stainless steel wire prevents loosening in aircraft, automotive, and industrial applications. Its corrosion resistance ensures durability in humid or outdoor settings, while its consistent diameter allows for reliable twisting with standard tools.

Engineered for predictable installation, this wire maintains strength and flexibility, reducing snapping or brittleness. It is suitable for securing drilled bolts, nuts, and hardware in engines, brake assemblies, and machinery. The 1lb dispenser can offers controlled payout for shop efficiency, providing approximately 840 ft (253m) of wire.

For Indian users, this specification-grade wire offers superior reliability compared to generic local alternatives. All customs duties and GST are included in the price. Delivery is via ExpressBox, tracked to your pincode, arriving within 13-15 days.

Key Features

SPECIFICATION & COMPLIANCE AUTHORITY: NASM20995C / MS20995C compliant stainless steel safety lock wire manufactured from T302/304 alloy and meeting ASTM A580 Condition A and AMS5697 standards for regulated aviation and industrial use.
PROFESSIONAL GAUGE & DIAMETER RANGE: Available in multiple diameters from .020 to .063, including high-demand .032 safety wire, providing correct gauge strength with aviation-grade standards and trusted performance technicians may use for aircraft, automotive, motorsport, and industrial fasteners.
CORROSION-RESISTANT STAINLESS STEEL: T302/304 stainless steel twisted metal safety wire resists rust and oxidation in humid, marine, outdoor, and high temperature exposed settings. Helps maintain long-term secure fastening and tension performance across demanding shop and field applications.
RELIABLE TWIST PERFORMANCE: Engineered for consistent diameter and flexible handling to reduce snapping, brittleness, and over-twisting during installation. Works with standard safety wire clamp tool setups and aviation safety wire pliers.
EFFICIENT DISPENSER & BULK OPTIONS: - Available in 1 lb Stainless Steel Lock Wire Convenient Dispenser for controlled pull and reduced tangling, or 5 lb bailing wire spools for high-volume operations. Supports organized workflow for garages, industrial maintenance, and professional applications, with trusted strength.

Why choose this product

Precision Engineering for Critical Applications

This WCS safety lock wire is manufactured to stringent aerospace and industrial specifications like NASM20995C and ASTM A580. Unlike generic wires, its T302/304 stainless steel composition and precise diameter ensure consistent tensile strength and reliable twist performance, crucial for preventing fastener failure in high-vibration environments. This means greater operational stability for aircraft engines, automotive builds, and industrial machinery where component security is paramount.

Ideal for Demanding Indian Environments

This wire is suitable for professionals in India needing robust fastener security. Its corrosion-resistant T302/304 stainless steel construction handles humid coastal regions and high-temperature industrial settings effectively. While local wires may suffice for light tasks, this specification-grade option provides superior long-term reliability against vibration and environmental factors, ensuring your critical components remain secure.

How to use

Ensure bolts and nuts are drilled appropriately for safety wire insertion. Select the correct wire gauge (.021" in this case) based on fastener size and application requirements. — Prepare Fasteners
Thread the wire through the drilled holes of adjacent fasteners. Use safety wire pliers to twist the wire evenly and securely, maintaining consistent tension without over-twisting. — Route and Twist Wire
Anchor the twisted wire securely to an adjacent component or fastener. Trim any excess wire carefully to prevent interference with moving parts or creating sharp edges. — Anchor and Trim

Example scenarios

Typical situations where WCS .021" Stainless Steel Safety Lock Wire | 253m (840 ft) | Corrosion-Resistant T302/304 helps — illustrative scenarios, not customer reviews.

Scenario 1

Illustrative example

Where it helps

Securing critical fasteners on a performance motorcycle during track days in India.

How this product helps

Using the .021" T302/304 stainless steel wire ensures bolts and nuts remain tight under extreme vibration and heat, preventing potential failures. Its corrosion resistance is beneficial for maintenance in varied Indian climates.

Scenario 2

Illustrative example

Where it helps

Preventing loosening of engine components in a vintage car undergoing restoration in a humid Indian city.

How this product helps

The NASM20995C compliant wire provides reliable security against vibration and thermal cycling, crucial for maintaining the integrity of restored engines. Its corrosion resistance helps prevent rust in challenging environmental conditions.

Specifications

Composition

Primary Alloy	T302/304 Stainless Steel
Key Properties	Corrosion resistant, high tensile strength, ductile for twisting

Usage

Recommended Use	Securing nuts, bolts, and hardware subject to vibration in aircraft, automotive, motorsport, and industrial applications.
Installation	Route through drilled holes, twist evenly with safety wire pliers, anchor securely, trim excess.
Gauge Suitability	0.021" (0.53mm) gauge is suitable for various fastener sizes; consult technical manuals for specific applications.
Cost per use	840 ft tube at approx. 1 ft/use = 840 uses: ₹4.24 per use
Shelf life after opening	Indefinite when stored dry in dispenser can
Contraindications	Not suitable for applications requiring non-conductive materials or extreme flexibility beyond standard twisting.
Allergens / common irritants	Contains Nickel Metallic (California Proposition 65 warning)

How we compare

Feature	WCS .021" Stainless	Others
Specification Compliance	NASM20995C, MS20995C, ASTM A580 Condition A, AMS5697	Varies by manufacturer; may lack specific aerospace/automotive certifications.
Alloy Grade	T302/304 Stainless Steel	Often standard 304 or unspecified stainless steel.
Corrosion Resistance	Excellent for general use, humid, outdoor environments.	Good for general use; may show surface rust in highly corrosive conditions.
Twist Performance	Engineered for consistent, reliable twisting without snapping.	Can vary; some may be more brittle or prone to breaking.
Cost per 840 ft (approx.)	₹4.24 per ft	₹500 - ₹1500 (varies by gauge, length, and brand)

SKU	euu6846
GTIN	00035926000506
Brand	WCS WIRE AND CABLE SPECIALTIES, INC.
Product Name	WCS .021" Stainless Steel Safety Lock Wire
Diameter	0.021 inches (0.53 mm)
Length	840 feet (253 meters)
Weight	1 lb (0.45 kg)
Material	T302/304 Stainless Steel
Finish	Polished
Form	Coil in Dispenser Can
Specifications Met	NASM20995C, MS20995C, ASTM A580 Condition A, AMS5697
Country of Origin	Not stated by manufacturer — US retail version, sourced from authorized US retailers and authorized brand partners

Attributes	Current WCS .021" Stainless Steel Safety Lock Wire \| 253m (840 ft) \| Corrosion-Resistant T302/304Buy Now	WCS .032 Stainless Steel Safety Lock Wire, T302/304, 0.81 mm (0.032 in) \| NASM20995C CompliantBuy Now	WCS .025 Stainless Steel Safety Lock Wire (0.635 mm / 0.025 in) \| NASM20995C CompliantBuy Now	WCS .028 Stainless Steel Safety Lock Wire, T302/304, 0.45 kg (1 lb) \| Corrosion-Resistant Mechanics Wire for Aircraft & Industrial UseBuy Now	uxcell MR126-2RS Deep Groove Ball Bearings 6mm x 12mm x 4mm \| Double Sealed Chrome Steel (10 Pcs)Buy Now	HARFINGTON M2 PVC Flat Washers 2mm ID x 5mm OD x 0.3mm Thick \| 300-Piece Pack for Sealing & Gasket ApplicationsBuy Now	Tnisesm 10SQ050 Schottky Blocking Diode 50V 40 Pcs \| Rectifier Diode Kit for Solar PanelBuy Now
Spec
Price

WCS .021" Stainless Steel Safety Lock Wire | 253m (840 ft) | Corrosion-Resistant T302/304

Product details

Frequently bought together

Crowcrowcrow: The Only Safe Lane for US-Market Exclusives

Tested and Trusted · Always Original & 100% Imported