Zeron 100 pins are super duplex stainless steel pins (UNS S32760 / Werkstoff 1.4501) for shaft alignment, location, retaining, and shear-load applications in seawater + chloride + sour-service environments. Standard pin types: parallel dowel pins (DIN 7 / ISO 2338) for precision-fit alignment, taper pins (DIN 1 / ISO 2339) for separable connections, clevis pins (DIN 1444 / ASME B18.8.1) for load-bearing pivot joints, spring pins / roll pins (DIN 1481 / ISO 8752) for slotted-tube retention, and cotter pins / split pins (DIN 94 / ISO 1234) for fastener-end retention.
Dowel pins (DIN 7) · Taper pins (DIN 1) · Clevis pins (DIN 1444) · Spring pins (DIN 1481) · Cotter pins (DIN 94)
Used wherever a stainless or alloy-steel pin would corrode away, subsea instrument-housing locator pins, FPSO equipment alignment dowels, FGD scrubber damper-shaft clevises, marine-pump impeller retaining clevis pins, desalination valve-stem cotter pins, geothermal wellhead bonnet alignment dowels.
| Pin type | Standard | Function |
|---|---|---|
| Parallel dowel pin | DIN 7 / ISO 2338 / ASME B18.8.2 | Precision alignment between assembled parts (h6/h8/m6 fits) |
| Taper pin | DIN 1 / ISO 2339 | Separable taper-fit alignment + shear load |
| Clevis pin | DIN 1444 / ASME B18.8.1 | Load-bearing pivot joint with cotter retention |
| Spring pin (slotted) | DIN 1481 / ISO 8752 | Self-retaining tubular pin in pre-drilled hole |
| Spring pin (coiled) | DIN 7344 / ISO 8748 | Higher shear load than slotted spring pin |
| Cotter pin / split pin | DIN 94 / ISO 1234 | Through-bolt or castle-nut end retention |
| Knurled pin | DIN 1473 / ISO 8740 | Press-fit retention with knurled diameter |
| Grooved pin | DIN 1474 / 1475 / ISO 8741 | Press-fit with grooves for axial retention |
Diameters M2 to M50 (or 1/16" to 2") with length-to-diameter ratios per the relevant DIN/ISO/ASME spec. Stock inventory at common dowel sizes (M6, M8, M10, M12, M16, M20). Specials cut from solution-annealed bar within 5-10 working days.
| Service | Recommended pin type + supply state |
|---|---|
| Subsea instrument housing alignment | Dowel pin, FLT supply state |
| FPSO equipment skid alignment | Dowel pin, SA |
| FGD scrubber damper-shaft clevis | Clevis pin, SA |
| Marine pump impeller retainer | Clevis pin + cotter pin, SA |
| Desalination valve-stem retention | Cotter pin, SA |
| Wellhead bonnet alignment dowel | Dowel pin, FG (high-load) |
| Cyclic-load shear pin | Spring pin (coiled), SA |
Send the spec (pin type + diameter + length + supply state + standards / DIN reference + quantity + destination port) to info@torqbolt.com or +91-22-66157017 / WhatsApp.
