Photos of all thread rod, zinc caps, flat washers, a heavy hex nut and OMNI-SLEEVE, plus an OMNI-SLEEVE drawing. The item number sets the product, finish and size.

Item # TR3410Z Questions and answers (6)

Rod Couplings, Rods and Sleeves

Rod couplings and rod, the bolts, nuts and washers that go with them, zinc caps, and OMNI-SLEEVE wall sleeve hubs.

Priced by request

Add it to your quote list or call 800.999.2550.

For buried restraint, check the spec: of the rod here, only the restraining rods are listed as HSLA
OMNI-SLEEVE hubs, 3 to 10 in.
See all specifications

Product: All thread rod

Finish: Zinc plated

Size: 3/4 in. x 10 ft

Made: Ask your regional team

Material: As listed

As SIGMA lists it. For buried tie rod restraint, check the job spec. The 18 and 24 in. restraining rods are listed as HSLA.

Your distributor

SIGMA sells through waterworks distributors. Order with item # TR3410Z.

Quote from SIGMA

Job location

Sends your quote list to the right regional team.

Quantity

Download the HSLA and stainless rod spec sheet

Need help on the job?

Call 800.999.2550 with the rod size, the length and the finish.

Find your regional team Documents

Everything about this item: 3/4 in. x 10 ft

Details, specs, every size and the questions buyers ask. Open what you need.

Product detailsWhat it is, highlights and documents

About rod couplings and hardware

The parts for tie rod restraint: rod couplings, rod, hex bolts, heavy hex nuts and flat washers, plus zinc anode caps and OMNI-SLEEVE hubs. For buried restraint, check the spec: of the rod on this page, only the 18 and 24 in. restraining rods are listed as HSLA. Each OMNI-SLEEVE item number is the hub with accessories.

Highlights

Tie rod hardware in several finishes
OMNI-SLEEVE, 3 to 10 in.

Documents

SpecificationsAll thread rod, 3/4 in. x 10 ft

All thread rod, 3/4 in. x 10 ft

Item number	TR3410Z
Item	All thread rod Zinc plated
Size	3/4 in. x 10 ft
Made	Ask your regional team
Material	As listed
Pressure rating	Not listed
MJ bolt holes (catalog)
Weight (price list)	Ask your regional team
Pack quantity
In the Extended Range catalog	Page

Rod, couplings and hardware

Restraining rods	3/4 in., 18 and 24 in. long, HSLA, as SIGMA lists them
All thread rod	5/8 and 3/4 in., 6, 10 and 12 ft. Plain rod is listed as non-HSLA. The zinc plated, galvanized and blue coated rod descriptions do not name a grade. The catalog notes mild steel rod is not for buried use. The 18 and 24 in. restraining rods are listed as HSLA
Threaded rods spec sheet	Covers ASTM A242 HSLA, AISI 304 and AISI 316 rod, 5/8 and 3/4 in., dimensions per AWWA C111/A21.11, threads per ASME B1.1. It matches the HSLA restraining rods and the stainless 304 rod on this page, not the plain (non-HSLA) all thread rod. For the zinc plated, galvanized and blue coated rod, ask your regional team
Heavy hex nuts	Threaded per ANSI B1.1, coarse thread series, per the catalog
Finishes	Plain, zinc plated, galvanized, stainless (some listed as 304), blue coated and fluoro coated, as SIGMA lists them. Not every size comes in every finish

Zinc caps and OMNI-SLEEVE

Zinc caps	Large zinc anode caps for 5/8 x 11 UNC and 3/4 x 10 UNC threads, Special High Grade zinc per MIL-A-18001J and ASTM B418, per the zinc cap sheet
OMNI-SLEEVE hub	Ductile iron, ASTM A536, per ANSI/AWWA C110/A21.10, with an integrally cast waterstop, per the catalog
Carrier pipe seal	Mechanical joint seal per ANSI/AWWA C111/A21.11, rated to 350 psi, per the catalog. The hub and sleeve pipe are sealed with an SBR gasket, per the catalog
Sleeve pipe OD	6.9 in. for 3 and 4 in. pipe, 9.05 in. for 6 in., 11.1 in. for 8 in., 13.2 in. for 10 in., per the June 2026 chart
OMNI-SLEEVE items	Each item number is the OMNI-SLEEVE hub with accessories, as SIGMA lists it. The catalog shows the hub assembled to a separate sleeve pipe. Ask your regional team whether the sleeve pipe is included
OMNI-SLEEVE sizes	3 to 10 in. carrier pipe on the June 2026 catalog chart. For other sizes, ask your regional team

Ordering

Pricing	By request, except OMNI-SLEEVE: Import Fittings price list, effective 1/5/26
OMNI-SLEEVE submittal	Ask your regional team

From the Extended Products price catalog (rev. 7/29/26), the Import Fittings price list (effective 1/5/26), the Extended Range catalog (May 2025), the OMNI-SLEEVE catalog (June 2026), the threaded rods spec sheet (July 2023) and the zinc cap sheet (October 2021).

Every size and item numberItem numbers by size

The sizes that come with the choices picked above. Pick a size to load it.

Rod couplings, rod, bolts, nuts, washers, zinc caps and OMNI-SLEEVE: item numbers by size
Size	Item #	Pressure	Weight (lb)
	TR5806Z
	TR5810Z
	TR3406Z
	TR3410Z
	TR3412Z

Item numbers from the Extended Products price catalog (rev. 7/29/26), which is not posted online; those items are priced by request. OMNI-SLEEVE item numbers and weights from the Import Fittings price list (effective 1/5/26).

Questions and answers6 questions buyers ask about rods and hardware

How are these items priced?

OMNI-SLEEVE is on the Import Fittings price list: pick an OMNI-SLEEVE item and the View price list button opens it. The other items on this page are priced by request: add them to your quote list, ask your regional team, or call 800.999.2550 with the item numbers. SIGMA sells through waterworks distributors, and your distributor sets your price.

Which finish?

Use what the spec calls for. SIGMA lists plain, zinc plated, galvanized, stainless, blue coated and fluoro coated items; not every size comes in every finish. Pick Finish above.

Is plain rod for buried use?

The plain all thread rod is listed as non-HSLA, the zinc plated, galvanized and blue coated rod descriptions do not name a grade, and the Extended Range catalog notes that mild steel rod is not for buried use. The 18 and 24 in. restraining rods are listed as HSLA. For buried restraint, check the spec and ask your regional team.

What is OMNI-SLEEVE?

A ductile iron sleeve for a pipe passing through a wall or floor, sealed to the carrier pipe with a mechanical joint, per the OMNI-SLEEVE catalog. It bolts to the formwork to stay in place during the pour. The catalog chart covers 3 to 10 in. carrier pipe. Each OMNI-SLEEVE item number on this page is the hub with accessories; the catalog shows it assembled to a sleeve pipe, so ask your regional team whether the sleeve pipe is included. For a submittal, ask your regional team.

Which 3/4 in. tie rod parts are here?

Restraining rods (18 and 24 in., listed as HSLA), all thread rod (6, 10 and 12 ft; not every finish in every length), rod couplings RC34Z and RC34S, heavy hex nuts (plain, zinc plated, fluoro blue coated or stainless 304), flat washers, and zinc caps ZC34L for 3/4 x 10 UNC threads. The number of rods for a joint comes from the job spec. For buried restraint, check the spec first.

What do zinc caps do?

Per the zinc cap sheet, they give cathodic protection to underground and submerged threads, bolts and nuts on glands, flanges and mechanical fittings.