ZB1501
RICHWITS
ZB1501
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The ZB1501 row lock from RICHWITS is a heavy-duty, yacht-grade oarlock socket engineered for salt-water rowing, dinghies, tenders and yacht tenders.
CNC-machined from solid marine 316 stainless steel and finished with a 400-grit mirror polish, it delivers lifetime immunity to salt-water pitting and a dazzling "chrome" look season after season.
Ideal for gunwales, transoms or cockpit coamings—anywhere you need a rock-solid 19 mm row lock that will never rust, seize or mark your oar shaft.
| CODE | A mm | B mm | C mm | D mm | E mm | F mm | G mm | WT (kg) |
|---|---|---|---|---|---|---|---|---|
| ZB1501 | 150 | 35 | 56 | 70 | 5.5 | 5.0 | 19 | 0.285 |
All tolerances ±0.2 mm. 316 SS investment casting, 100 % leak-tested.


| Feature | Advantage |
|---|---|
| Marine 316 SS | Lifetime immunity to salt-water pitting & rust |
| One-Piece Investment Cast | No weld seams → higher strength, zero leakage |
| High-Polish ID | Protects expensive oar shafts from scratches & wear |
| 5° Down-Tilt Angle | Self-draining, comfortable rowing angle, reduces oar chatter |
| 5.5 mm Flange Thickness | Heavy-duty load distribution, accepts M6 through-bolts or studs |
| Lightweight | Only 0.285 kg net—adds minimal topside weight |
Factory-direct – No middle-man, wholesale & retail welcomed
In-Stock – 2 000+ pcs ready to ship, low MOQ 10 pcs
Fast Logistics – FedEx / UPS / DHL global 3-7 day delivery
OEM/ODM – Laser-logo, custom down-angle, special flange shape available within 2 weeks
Q1: Will 316 SS really never rust?
A1: Correct—316 contains 2-3 % Mo, giving lifetime immunity to chlorides; polish yearly to keep the mirror shine.
Q2: What oar diameters fit the ZB1501?
A2: Accepts shaft diameters 18-19 mm (use PVC shim for smaller oars).
Q3: Can I weld it to an aluminum gunwale?
A3: Use 316L filler or bolt-on method; avoid direct AL-SS weld to stop galvanic attack.
QQ4: Does it drain water?
A4: Yes—5° down-tilt + 4 mm weep hole at base keep socket dry and free of salt build-up.
Q5: Is the flange waterproof?
A5: Add a 3 mm neoprene gasket (supplied on request) for 100 % watertight deck penetration.
Q6: Do you supply a matching row-lock pin?
A6: Optional 316 SS split pin (Part # RP-PIN-19) available, MOQ 50 pcs.


The ZB1501 row lock from RICHWITS is a heavy-duty, yacht-grade oarlock socket engineered for salt-water rowing, dinghies, tenders and yacht tenders.
CNC-machined from solid marine 316 stainless steel and finished with a 400-grit mirror polish, it delivers lifetime immunity to salt-water pitting and a dazzling "chrome" look season after season.
Ideal for gunwales, transoms or cockpit coamings—anywhere you need a rock-solid 19 mm row lock that will never rust, seize or mark your oar shaft.
| CODE | A mm | B mm | C mm | D mm | E mm | F mm | G mm | WT (kg) |
|---|---|---|---|---|---|---|---|---|
| ZB1501 | 150 | 35 | 56 | 70 | 5.5 | 5.0 | 19 | 0.285 |
All tolerances ±0.2 mm. 316 SS investment casting, 100 % leak-tested.


| Feature | Advantage |
|---|---|
| Marine 316 SS | Lifetime immunity to salt-water pitting & rust |
| One-Piece Investment Cast | No weld seams → higher strength, zero leakage |
| High-Polish ID | Protects expensive oar shafts from scratches & wear |
| 5° Down-Tilt Angle | Self-draining, comfortable rowing angle, reduces oar chatter |
| 5.5 mm Flange Thickness | Heavy-duty load distribution, accepts M6 through-bolts or studs |
| Lightweight | Only 0.285 kg net—adds minimal topside weight |
Factory-direct – No middle-man, wholesale & retail welcomed
In-Stock – 2 000+ pcs ready to ship, low MOQ 10 pcs
Fast Logistics – FedEx / UPS / DHL global 3-7 day delivery
OEM/ODM – Laser-logo, custom down-angle, special flange shape available within 2 weeks
Q1: Will 316 SS really never rust?
A1: Correct—316 contains 2-3 % Mo, giving lifetime immunity to chlorides; polish yearly to keep the mirror shine.
Q2: What oar diameters fit the ZB1501?
A2: Accepts shaft diameters 18-19 mm (use PVC shim for smaller oars).
Q3: Can I weld it to an aluminum gunwale?
A3: Use 316L filler or bolt-on method; avoid direct AL-SS weld to stop galvanic attack.
QQ4: Does it drain water?
A4: Yes—5° down-tilt + 4 mm weep hole at base keep socket dry and free of salt build-up.
Q5: Is the flange waterproof?
A5: Add a 3 mm neoprene gasket (supplied on request) for 100 % watertight deck penetration.
Q6: Do you supply a matching row-lock pin?
A6: Optional 316 SS split pin (Part # RP-PIN-19) available, MOQ 50 pcs.

