Standard Hex Head Flange Bolts

Standard production follows fixed industry specs and common size templates, with mature automated lines running continuously. Factories keep regular raw materials and molds in stock, skipping custom tooling or parameter adjustment steps. This mode supports fast batch output, consistent sizing across pieces, and quick order fulfillment for routine projects. Most daily purchase demands for general fastening can be covered via this standardized production route.

Standard Hex Head Flange Bolts also support non-standard production for special working conditions, targeting customized sizes, thread pitches or material grades. Workers need to redevelop molds, adjust processing parameters and test matching tooling before formal production. This type has no fixed inventory, requires raw material procurement based on drawings, and has a longer production lead time than standard versions, focusing on meeting unique installation or load-bearing needs.Quality control rules apply to both production types. Standard pieces go through routine size and strength checks; non-standard pieces add extra custom parameter verification to ensure fit with customer drawings. The production lines share basic processing equipment, but non-standard orders need more manual calibration and single-piece inspection to avoid mismatches, while standard batches rely more on automated screening.

Product size customization

We offer full size customization for Standard Hex Head Flange Bolts that fit standard assembly setups, starting with thread and length options.

（1）Metric and imperial dimensions

Metric sizes range from M5 to M20, while imperial sizes cover 1/4 inch to 3/4 inch; length can be adjusted from 10mm to 80mm based on your mounting hole spacing, no extra fees for basic linear tweaks. We stick to strict tolerance ranges to make sure every piece fits your equipment without gaps.

（2）Flange size

Flange face dimensions are fully customizable too, including diameter, thickness, and tooth design. You can pick serrated or smooth flange surfaces, and we align with common industry standards to guarantee stable contact with mounting surfaces. This eliminates the need for extra washers in most cases, and we adjust these specs based on your exact installation space.

（3）Hexagonal head size

Hex head measurements are tailored to your tool compatibility needs. We modify hex width and head height to match standard wrenches, and offer coarse or fine thread types based on your threaded hole design. Thread tolerance stays at 6g for metric versions, ensuring smooth installation and tight fastening without cross-threading risks.

（4）Thread size

Standard Hex Head Flange Bolts can also be paired with custom material and finish choices to match size needs. We use carbon steel or 304/316 stainless steel, with zinc plating or black oxide finishes. Just share your drawings, sample pieces, or written size specs, and we finalize technical details before production to keep all dimensions consistent in bulk runs.

FAQ

What is the lead time for bulk orders of the Standard Hex Head Flange Bolts , and do you have ready stock?

We keep regular sizes in stock for fast shipping, with ready goods dispatched within 7-10 working days after payment confirmation. Bulk orders or large-quantity stock orders take 12-18 working days for production. We will share production progress regularly and provide tracking information once the order is shipped to help you plan your project schedule in advance.