110pc Grease Zerk Fitting Kit 1/4-28 1/8 NPT Straight 45 90 Degree Angled — Open-Box, 45% Off

- Kit holds 110 fittings sorted by thread and head angle: 1/4-28 straight 30 pieces, 1/4-28 at 45 degrees 15 pieces, 1/4-28 at 90 degrees 15 pieces, 1/8 NPT straight 20 pieces, 1/8 NPT at 45 degrees 15 pieces, 1/8 NPT at 90 degrees 15 pieces. Between the two thread sizes and three head angles the kit covers the lubrication points found on most American vehicles, trailers and machinery.

- Both sizes follow the SAE J534 hydraulic-type pattern that a standard grease gun coupler locks onto. Each fitting carries a spring-loaded ball check in the head that opens under gun pressure and reseats the moment the coupler pulls off, so grease stays in the passage and the port stays sealed between services. Working pressure is rated to 6000 psi, which covers hand guns, air guns and battery guns alike.

- The 1/4-28 fittings use SAE-LT taper thread and are made to run into a straight 1/4-28 UNF hole where the taper wedges and seals as it tightens. The 1/8 NPT fittings use tapered pipe thread and are the size found on farm equipment, hydraulic cylinders and heavier machinery. The two are not interchangeable, so compare the fitting that came out of the port before picking a replacement.

- Angled heads are why an assortment beats buying one size. A straight fitting is unusable when a control arm, frame rail or guard sits over the port, while a 45 or 90 degree head turns the coupler out into open space where it can be seated square. Bodies are machined from steel and zinc plated, which holds up to road salt, pressure washing and long outdoor storage on trailers and yard equipment.

- Suits ball joints, tie rod ends, u-joints, driveshaft slip yokes, control arms, king pins, trailer hitches and jacks, mower spindles and deck bearings, tractor loader pins, ATV and UTV suspension, boat trailers, farm implements and construction machinery. Fittings arrive sorted in a compartment case with a latching lid, so the kit stays organized on a shop shelf or in a service truck.

The AUTOMAJOR 110-piece Grease Zerk Fitting Kit covers the two thread sizes found on almost every American lubrication point, in all three head angles, so a seized or snapped fitting gets replaced the same day instead of waiting on a parts order. Count by type: 1/4-28 straight 30 pieces, 1/4-28 at 45 degrees 15 pieces, 1/4-28 at 90 degrees 15 pieces, 1/8 NPT straight 20 pieces, 1/8 NPT at 45 degrees 15 pieces, 1/8 NPT at 90 degrees 15 pieces. Both sizes are hydraulic-type fittings built to SAE J534, the same pattern a standard grease gun coupler locks onto. Each one carries a spring-loaded ball check in the head — it opens under gun pressure and reseats when the coupler comes off, so grease stays in the passage and the port stays sealed between services. Working pressure is rated to 6000 psi. The 1/4-28 fittings use SAE-LT taper thread and are made to thread into a straight 1/4-28 UNF hole, where the taper wedges and seals as it tightens. The 1/8 NPT fittings use tapered pipe thread and seal on the flanks the same way, common on farm equipment, hydraulic cylinders and larger machinery. Check what came out of the port before choosing — the two are not interchangeable. Angled heads are the reason a kit beats a single size — a straight fitting is unusable when a suspension arm or guard sits over the port, while a 45 or 90 degree head turns the coupler out where you can seat it square. Bodies are machined from steel with a zinc plating that stands up to road salt, washdowns and long outdoor storage. Common uses: ball joints, tie rod ends, u-joints, driveshaft slip yokes, control arms, king pins, trailer hitches and jacks, mower spindles and deck bearings, tractor loader pins, ATV and UTV suspension, boat trailers and farm implements. Fittings arrive sorted by size and angle in a compartment case with a latching lid, so the box goes on the shelf or in the service truck and stays organized. Backed by AUTOMAJOR — grease fittings and lubrication hardware.