ISO 9001:2015 CertifiedLOCK-N-STITCH Inc. - CASTING Repair is Our Passion!
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LOCK-N-STITCH Inc. specializes in all aspects of the repair of cracked and damaged cast iron and other cast metals. LNS manufactures crack and thread repair products, provides training in crack repair techniques and maintains a full-service repair department that performs repairs all over the world and has the benefit of over thirty years of experience.

Whether you want to metal stitch a damaged casting yourself, want our professionals to do the job, or need an on-site consultant to advise and train your personnel during the repair, we have the supplies, the skills, and the people to assist you. Quite simply: we can fix it or you can fix it.

Please review our website and see what we have to offer to you and your company. Our site is organized into eight main sections: Metal Stitching, Thread Repair Inserts, Stitching Products, Service, Training, Technical Support, Cast Iron Welding and Repair Examples. Visit the ones that interest you the most and let us know how we can be of help.

We manufacture and sell products covered under US Patent No. 5,379,505; 5,417,532; 5,499,892; 5,562,371; 5,944,303; 6,071,051; 6,126,367; 6,212,750; 6,261,039; 6,382,893; 6,435,788; 6,439,817; 6,572,315; 6,725,518;

Australian Patent No. 684525; Russian Patent No. 2137581. Many additional international patents have issued or are pending.

LOCK-N-STITCH Inc. Associations and Accreditations

ISN Member Vendor ISN Member Vendor
2007 Honoree INC. Magazine Small Business & Entrepreneurs 2007 Honoree INC. Magazine Small Business & Entrepreneurs
2008 Honoree INC. Magazine Small Business & Entrepreneurs2008 Honoree INC. Magazine Small Business & Entrepreneurs
2013 NOVA Award Nominee 2013 NOVA Award Nominee
Lloyds Registry Lloyds Registry
ISO 9001:2008 ISO 9001:2008
AERA Automotive Engineer Rebuilders Association
APRA Automotive Parts Remanufacturers Association
Full Torque LOCK-N-STITCH Inc. Thread Repair Product Line
PERA Production Engine Rebuilders Association

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