Rail fasteners & bolting.
Bolting, pins and studs for tank cars, hoppers, freight car trucks, locomotives and track.
Rail equipment is bolted together and taken apart on a schedule: manway covers and valve flanges on tank cars, outlet gates on hoppers, bearing end caps, draft gear and brake rigging on every car. We manufacture studs, bolts, nuts and pins to your drawings and specifications, in carbon, alloy and stainless steels, with material certification.
See where the bolts go.
Freight Locomotive
Cylinder head studs and nuts, roller bearing end cap screws, motor support bearing cap bolts, gear case bolts, nose suspension bolts, brake cylinder mounting bolts, brake rigging pins, secondary pad bolts, centre pin and traction link bolts, truck hold-down bolts, draft gear carrier bolts, coupler cross key and retainer, fuel tank mounting bolts, engine mounting bolts and main alternator mounting bolts.
Freight Car Truck & Coupler
Control valve and pipe bracket studs and nuts, roller bearing end cap screws, frame key bolts and nuts, side bearing bolts and nuts, centre pin, brake beam and lever pins, draft key and retainer bolt, yoke and draft gear carrier bolts, coupler carrier wear plate bolts, uncoupling lever bracket bolts, brake cylinder mounting bolts, reservoir strap bolts, brake pipe flange bolts, hand brake mounting bolts and safety appliance bolts.
Railroad Tank Car
Fittings plate, valve flange, relief valve flange and bottom outlet valve studs and nuts, plus manway eyebolts and nuts, protective housing bolts, outlet nozzle bolts and nuts, safety appliance bolts, head shield and jacket bolts, brake equipment bracket bolts, draft keys and retainers, draft gear carrier bolts and side bearing bolts and brake pins.
Covered Hopper Car
Outlet gate mounting bolts and nuts, gate shaft and lock hardware, hatch cover hinge pins, hatch hold-down bolts, running board bolts, safety appliance bolts, brake equipment bracket bolts, draft keys and retainers, draft gear carrier bolts, centre plate bolts, side bearing bolts and brake beam and lever pins.
Railroad Turnout
Track bolts, nuts and spring washers, insulated joint bolts, switch stand lag screws, switch rod and clip bolts, point stop bolts, heel block bolts, RBM frog bolts, guard rail bolts, screw spikes (lag screws) and cut spikes (plain track).
Grades rail runs on.
ASTM A193 Grade B7
The workhorse alloy-steel bolting grade for flanges, valves and pressure equipment — 125 ksi tensile, quenched and tempered 4140.
ASTM A320 / ASME SA-320ASTM A320 Grade L7
The low-temperature twin of B7 — same 4140 Cr-Mo steel, same 125 ksi strength, but impact tested at −150 °F for cryogenic and cold-climate service.
ASTM A354 Grade BD · SAE J429 Grade 8SAE Grade 8 / ASTM A354 Grade BD Bolts (150 ksi)
The high-strength alloy bolt: quenched and tempered alloy steel at 150 ksi tensile and 130 ksi yield in all sizes to 4 in. — Grade 8 in SAE terms, A354 BD in ASTM terms.
ASTM A449 Type 1 · SAE J429 Grade 5SAE Grade 5 / ASTM A449 Bolts (120 ksi)
The everyday high-strength bolt: quenched and tempered medium-carbon steel at 120 ksi to 1 in., stepping down for larger sizes — Grade 5 in SAE terms, A449 in ASTM terms.
ASTM A322 bar · ASTM A434 Q&T barAISI 4140 Alloy Steel (UNS G41400)
The workhorse Cr-Mo steel behind B7, L7 and Grade 7 — the bar stock for studs, shafts, couplings and any part that needs 100 to 150 ksi and good toughness.
Jobs we’ve made in these grades.
