Couldn't find the exact size or configuration?
Holloway Houston builds custom slings in-house to your exact specs - any length, WLL, and end fitting combination, with proof testing and cert documentation.
All Products in this Category
Spelter Socket Compound
Holloway Houston stocks the full range of Crosby W416-7 WIRELOCK® Resin Kits, ranging from 100cc to 2000cc. Whether you are re-socketing a crane line in the field or fabricating boom pendants in the shop, WIRELOCK provides a 100% termination efficiency without the hazards of molten metal.
The WIRELOCK® Advantage
Why Switch from Zinc to Resin?
- No Heat Required : Eliminates the need for torches, melting pots, and handling molten zinc at 800°F+. This removes a significant safety hazard and "Hot Work" permit requirement from the job site.
- 100% Efficiency : When used with Crosby 416/417 Spelter Sockets, WIRELOCK achieves 100% of the catalog breaking strength of the wire rope.
- Fast Curing : The resin gels within minutes and is ready for 100% load in approximately 60 minutes (depending on ambient temperature). Zinc requires hours of cooling before the load can be applied.
- Approvals : WIRELOCK is the original cold socketing compound approved by Lloyds Register, DNV, and ABS for marine and offshore use.
Product Specifications
Crosby W416-7 WIRELOCK® Resin Kits Each kit comes pre-measured with the resin (liquid) and the hardener (powder).
- Temperature Range : Effective operating range from -65°F to +240°F (-54°C to +116°C).
- Shelf Life : Approximately 18 months from the date of manufacture (printed on the container).
- Application : Suitable for 6x7, 6x19, and 6x37 IWRC wire ropes. Note: Seizing is critical to prevent resin loss during pouring.
Sizing Your Kit
Do not guess the volume. Selecting the correct kit size ensures you have enough compound to fill the socket bowl completely in one pour.
- 100cc - 250cc : For wire rope diameters 1/4" to 3/4".
- 500cc - 1000cc : For wire rope diameters 7/8" to 1-1/2".
- 2000cc+ : For heavy lift pendants and mooring lines 1-3/4" and above.
Tip : Always order 10% more resin than calculated to account for seepage and settling.
Technical Compliance
- Standard : Meets requirements for wire rope terminations under ASME B30.9.
- Certification : Type approved by major classification societies (DNV, Lloyds, ABS).
- Traceability : Batch numbers are printed on every kit for quality control tracking.
Holloway Houston Spelter Services
We do not just sell the resin; we are socketing experts.
- Fabrication : We can fabricate custom length wire rope assemblies using Spelter Sockets and WIRELOCK resin in our facility.
- Pull Testing : We can proof load your field-socketed assemblies to verify the integrity of the pour.
- Technical Support : Need to know exactly how many CCs your specific socket requires? Contact our engineering team for a precise calculation.
Browse our inventory below to select the specific Kit Size (CC) required for your socket.
Filter
Shopping Options
Not sure which sling?
Our certified rigging specialists will review your load and recommend the correct sling — free of charge.
Request a Quote →
Request a quote you wish for and submit
Support →
Talk to our Customer Support team.
Why Buy from Holloway Houston?
HHI builds custom slings in-house to your exact specs - any length, WLL, and end fitting combination.
About Holloway
65+ Years in Business
Proof Tested Certs included
In-House Fabrication & Testing
100% Original Products
Rentals
100+ Brands Stocked
Frequently Asked Questions
If you couldn't find your query please write to us wirerope@hollowayhouston.com
Spelter socket compound - typically a zinc alloy or resin-based compound - is poured into a wire rope socket basket around the broomed-out (unlaid) rope strands, filling the basket to lock the rope into the socket once it sets. It's a fill material, not a clip or sleeve.
The amount of compound needed depends on the socket basket size and the rope diameter being terminated, since the basket has to fill completely around the broomed strands. There's no torque or fitting-spacing spec involved - the compound is poured once, per the socket manufacturer's fill volume for that size.
A properly poured spelter socket is generally considered a full-strength termination, retaining close to the rope's own catalog breaking strength - the exact figure is published in the rope and socket manufacturer's own data rather than as one number for the category.
Inspection programs for a spelter socket termination typically look for cracking or looseness of the set compound within the basket, corrosion at the socket mouth, and broken wires at the point where the rope enters the socket - there's no clamp to retighten, since the compound is a poured, one-time fill.
Open a B2B Account — Net 30 Terms
Log in to our B2B Portal for bulk orders, project quotes, rentals, and business purchasing.
Learn More
Proof testing included on all chain slings
Testing and certification services to help support quality, compliance, and safety requirements.
Learn More