[High Quality]- Dual 5/16inch stainless steel stud, lock washer, and nut, which is sturdy and rust-resistant. The is made of retardant plastic to your safety, ensures great mechanical strength and durability.[Dimensions]- The battery junction block is measured 1.77inch x 1.69inch x 1.26inch. Stud size: M8. Maximum working voltage: DC 48V & up to 80Amp. Maximum amplifier per circuit: determined by the connected wires.[Material]The Terminal Block bus made of high quality material, durable and practical to [Easy to install]The junction post's surface screw fixed installation-two mounting holes make it easier to be mounted in any orientation[Wide Applications]- The positive and negative distribution block is useful for customizing vehicles or relocating batteries. Applicable to 12-48V trucks, RVs, coaches, boats and other industrial equipment.Special Features: Terminal Block Studs Name: BB2-1Item: Distribution StudConnector Type: ScrewMounting Type: Surface Size: 45 x 43 x 32mmcolor:Black+redMaterial:plasticPackage Contents:1 x Black Double Stud with Gasket-M81 x Red Double Stud with Gasket-M84 x screwsOnly the above package content, other products are not included.Note: Light reflection and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.