




QWORK Brass Marine Grade Battery Terminal Top Post is an 8-pair set of brass positive and negative top-post battery terminals designed for reliable, corrosion-resistant connections on standard top-post batteries.
These QWORK terminals are machined from brass for conductivity and corrosion resistance, supplied as eight positive and eight negative clamps sized to fit common top-post lead-acid batteries used across automotive, marine, RV, and heavy-equipment applications. Each clamp accepts a 5/16" mounting bolt and comes in two post diameters (positive 19 mm, negative 17 mm) to match standard battery posts and accessories. The set is intended to replace worn clamps or to outfit multiple batteries, offering a solid mechanical and electrical connection where dependable power transfer matters.
The brass construction offers low electrical resistance and better long-term contact than many plated or composite alternatives. Brass resists pitting and oxidation in normal environments, which helps preserve a steady current path and reduces voltage drop at the connection point.
Yes—these QWORK clamps are made to match the common dimensions of top-post batteries. The set includes both positive and negative sizes so you can swap or replace clamps without worrying about compatibility with typical battery posts or ring-terminal accessories.
Installation is straightforward: remove the old clamp, slide the QWORK clamp over the battery post, and secure with a 5/16" bolt. Tighten until firm contact is achieved without over-torquing; use dielectric grease in marine or high-humidity environments for extra protection.
QWORK brass terminals are intended for marine and heavy-duty applications thanks to brass’s natural resistance to corrosion and reliable conductivity. They aren’t stainless steel, so routine inspection and protection are recommended in harsh saltwater environments.
Who is this for? QWORK Brass Marine Grade Battery Terminal Top Post clamps are well-suited for mechanics, marine technicians, DIY vehicle owners, fleet managers, and anyone who needs a dependable set of replacement top-post battery terminals. Choose this eight-pair kit if you maintain multiple batteries or want spare, robust connectors for cars, boats, RVs, and heavy equipment. The set’s straightforward sizing and durable brass build make it a practical, long-lasting solution for improving or restoring battery connections without specialty tools.
Q: Do these terminals fit standard top-post batteries?
A: Yes. The set includes positives (19 mm) and negatives (17 mm) sized for standard top-post batteries with 5/16" mounting bolts.
Q: Are these terminals corrosion resistant enough for marine use?
A: Built from brass for improved resistance, they work well in marine settings but benefit from periodic anti-corrosion treatment in salty environments.
Free shipping across Canada on every order, with no minimum. Orders are processed within 1 business day and standard delivery across Canada usually takes 2 to 5 business days after processing, with tracking by email. See the shipping policy.
Free 30-day returns. You have 30 days from delivery to start a return. Return shipping is free: email us your order number and we send a prepaid label. See the return & refund policy.
Not sure it fits? Email northtrailauto@gmail.com with your year, make, model and engine and we reply within 1 business day.










