![Magma Horizontal Round Rail Mount w/Knob - 1-1/2" [T10-591]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/magma-horizontal-round-rail-mount-w-knob-1-1-2-t10-591.webp)
Horizontal Round Rail Mount with Knob – 1-1/2″
Magma’s horizontal round rail mount with the knob replacement part.
Specifications:
- Mount: 1-1/2″
- Weight: 0.93lbs/0.43kg
- Exterior Construction Materials: 18-8 Stainless Steel and 356 Anodized Aluminum
- Warranty: 1 Year
![SeaDek Faux Teak 4-Piece Step Kit - Mocha/Black [23902-80093]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/seadek-faux-teak-4-piece-step-kit-mocha-black-23902-80093.webp)
![SeaDek 36" Fish Ruler - Storm Grey w/SeaDek Logo [22135-80038]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/seadek-36-fish-ruler-storm-grey-w-seadek-logo-22135-80038.webp){kind=logo}
![Sea-Dog Washdown Water Outlet - 316 Stainless Steel [513120-1]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/sea-dog-washdown-water-outlet-316-stainless-steel-513120-1.webp)
![SeaDek Small Helm Pad - Storm Grey/Black w/SeaDek Logo [37925-80324]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/seadek-small-helm-pad-storm-grey-black-w-seadek-logo-37925-80324.webp){kind=logo}
![KiwiGrip 1 Liter Pouch - Grey w/4" Roller [KG-1GP-R]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/kiwigrip-1-liter-pouch-grey-w-4-roller-kg-1gp-r.webp)
![Newmar Power-Pac 7AH Power Supply [POWER-PAC7AH]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/newmar-power-pac-7ah-power-supply-power-pac7ah.webp)
![Ronstan 40QT Orbit Winch w/Quick Trim [RA6402]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/ronstan-40qt-orbit-winch-w-quick-trim-ra6402.webp)
![KiwiGrip 4 - 1 Liter Pouches - Grey w/4" Roller [KG-4GP-R]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/kiwigrip-4-1-liter-pouches-grey-w-4-roller-kg-4gp-r.webp)
![Siren Marine Temp Sensor f/Siren 3 [SM-WLS3-TEMP-917]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/siren-marine-temp-sensor-f-siren-3-sm-wls3-temp-917.webp)
![Attwood Submersible LED Low-Profile Trailer Light Kit [14064-7]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/attwood-submersible-led-low-profile-trailer-light-kit-14064-7.webp)
![Egis Class T Fuse Block 110-200A Sealed [3911]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/egis-class-t-fuse-block-110-200a-sealed-3911.webp)
![Scandvik Slim 5" Dome Light - Warm White/Blue - 10-30V [41461P]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/scandvik-slim-5-dome-light-warm-white-blue-10-30v-41461p.webp)
![Battery Tender DC Power Connector - Receptacle Only [224-0061-BK]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/battery-tender-dc-power-connector-receptacle-only-224-0061-bk.webp)
![ACR Mounting Plate f/RCL-95 Searchlight [9639]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/acr-mounting-plate-f-rcl-95-searchlight-9639.webp)
![Ronstan 30QT Orbit Winch w/Quick Trim [RA6302]](https://www.greathardwarehub.com/wp-content/uploads/2026/09/ronstan-30qt-orbit-winch-w-quick-trim-ra6302.webp)
