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Mechanical Joint (MJ) Bolt Packs

T-head bolt and nut packs for ductile iron mechanical joints, sized by pipe diameter, in three material options.

DomCast Metals supplies mechanical joint bolt packs for ductile iron fittings in three material options: stainless steel with Teflon coated nuts, plain alloy, and blue Teflon coated. Packs run from 2" through 24" pipe sizes, with accessories carried separately.

Each pack is listed by the pipe size it serves, with the bolt diameter and length stated in the product name. Match the material to the corrosion conditions and the specification governing the job. Canadian-owned supplier.

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Stainless steel packsPlain alloy packsBlue Teflon packsAccessoriesPipe OD chartRequest a quote

Products (47 SKUs)

Stainless Steel

Plain Alloy

Blue Teflon

Accessories

Common questions

Which bolt size goes with which pipe size?

The pipe size each pack serves and the bolt diameter and length are both stated in the product name, for example a 4" pack listing 3/4 x 3-1/2" bolts. Use the product list below to match your pipe size, and confirm against the fitting manufacturer’s requirements before ordering.

What is the difference between the three materials?

Stainless steel with Teflon coated nuts resists corrosion and galling in aggressive soils. Plain alloy is the standard option. Blue Teflon coated is a coated alloy bolt. Which one is acceptable is set by the project specification, not by us. Check the contract documents.

Do the packs include nuts?

The stainless packs are listed as bolts with Teflon coated nuts. Confirm the exact contents of any pack when you request a quote.