






T-H Marine Jack Plate Bolt Kit – ½-20 x 2-3/4” Fine Thread Bolts with Shoulder – Stainless Steel
T-H Marine stainless steel bolt kit for jack plates — includes 4 × 1/2" x 3" bolts, 4 brass lock nuts with nylon insert and 8 stainless flat washers; corrosion-resistant mounting hardware for outboard motors.
$47.99
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UPC
733572002201 Available Quantity
15 GSA Item
Yes GSA Compliant
Yes Product Details
T-H Marine Jack Plate Bolt Kit (BK-1-DP) provides a complete mounting hardware set for attaching outboard motors to jack plates. Kit contains four 1/2" x 3" stainless steel long bolts, four 1/2" brass lock nuts with nylon insert, and eight 1/2" flat stainless steel washers. Constructed of stainless steel components and brass lock nuts for corrosion resistance in marine environments. Features include ½-20 x 2-3/4” fine thread bolts with shoulder for precision fit, flat head style with external hex drive for secure installation, and a durable finish suitable for boating applications. Package and item dimensions and weights are listed in the specifications below.
- Available in two variants – Choose from half-threaded (BK-1-DP) or fully threaded (BK-2-DP) options
- Durable and corrosion-resistant – Built with high-grade materials to withstand marine environments
- Complete hardware set – Comes with 4 brass lock nuts with nylon inserts and 8 stainless washers
- Includes 4 stainless bolts – ½-20 x 2-3/4” fine thread bolts with shoulder for precision fit
- Heavy-duty marine bolt kit – Designed to securely mount outboard motors to jack plates
Specifications
Materials & Construction
- Color:Steel
- Exterior Finish:Stainless Steel
- Material:Stainless Steel
- Metal Type:Stainless Steel
Product Details
- Drive System:External Hex
- Fastener Type:bolts, nuts, and washers
- Head Style:Flat
- Included Components:T-H Marine BK-1-DP Jack Plate Bolt Kit - Coarse Thread
- Item Diameter:0.5 Inches
- Number of Pieces:16
- Set Screw Thread Type:Unified National Coarse (UNC)
- Style:Screws and Nuts
- Style Detail:Coarse Thread
- Thread Coverage:coarse
- Thread Size:1/2 inch
- Thread Style:Right Hand
- Thread Type:Unc
Sizing & Dimensions
- Height:5.5 inches
- Length:8.5 inches
- Product Dimensions:8.5 x 5.5 x 5.5 inches
- Size:One Size
- Weight:1.1 pounds
- Width:5.5 inches
Technical Specifications
- Head Type:Flat
Ratings And Reviews

