# Hillman Stainless Steel Carriage Bolts 1/4 x 2-1/2-Inch (25-Pack) | Rust-Resistant for Outdoor Wood & Metal Joints **Brand:** Hillman **SKU:** cuu1588 **ASIN:** B000DEN5L4 **Canonical URL:** https://crowcrowcrow.com/p/hillman-832522-stainless-steel-carriage-bolt-2-1-2-inch/cuu1588 **Subcategory:** Categories **Availability:** in_stock **Price (INR, all-inclusive):** ₹3,008 **Discount:** 32% **Customer rating:** 4.13/5 from 8 ratings ## Description Hillman Stainless Steel Carriage Bolts (1/4" x 2-1/2", 25-Pack) offer rust-resistant fastening for wood-to-wood or wood-to-metal joints. Their self-locking square neck and semi-flush finish ensure secure, clean installations. Ideal for outdoor projects in India. Arrives in 13-15 days. ## Highlights - Outdoor Rust Prevention — Stainless steel construction provides superior rust resistance, ideal for humid Indian climates and outdoor projects where corrosion is a concern. Maintains a bright finish. - Secure Self-Locking Neck — The square underside of the head locks into wood or pre-drilled square holes, preventing the bolt from spinning during tightening and ensuring a secure joint. - Semi-Flush Finish — The flat, round head sits flush against the surface, offering a clean aesthetic and eliminating the need for a separate washer in many applications. - 25-Pack Value — This pack contains 25 bolts, providing ample supply for multiple projects and offering a cost-effective solution for your fastening needs. ₹120 per bolt. ## Key features - Carriage Bolts are designed to fasten a wooden face to either wood or metal - Flat head provides a semi-flush finish to applications - The heads is designed to eliminate the need for a washer - Square underside of the head is self locking to eliminate the need for a driving tool - Stainless Steel provided superior rust prevention and bright finish ## Why choose this product **Superior Corrosion Resistance for Indian Conditions** — Hillman Stainless Steel Carriage Bolts are engineered for durability, especially in environments prone to moisture and humidity. Unlike standard steel fasteners that can quickly rust and degrade in India's climate, these bolts are made from high-grade stainless steel. This material offers exceptional resistance to corrosion, ensuring your outdoor projects, such as decking, fencing, or garden furniture, remain structurally sound and aesthetically pleasing for years. The bright finish also adds a clean look. Imported from authorized US retailers, they provide a reliable alternative to locally sourced bolts that may not offer the same level of rust protection. **Ideal for Woodworking & DIY, Skip if...** — These 1/4" x 2-1/2" carriage bolts are perfect for securely joining wooden components or attaching wood to metal frames, offering a clean, semi-flush finish. The self-locking square neck simplifies installation by preventing spinning. Skip these if you require bolts for heavy-duty structural applications needing higher tensile strength grades (like Grade 5 or 8) or if you need metric thread sizes (M6, M8) which are more common for matching nuts in India. For purely indoor, dry applications, standard zinc-plated bolts might suffice at a lower cost. ## How to use 1. Choose the wood or metal pieces you need to join. Ensure the wood has a square hole or is soft enough for the square neck to seat firmly. Select the correct bolt length to pass through both materials with room for a nut and washer. — Select Appropriate Materials 2. Drill a hole through the materials. For wood, create a square recess under the surface hole to accommodate the bolt's square neck. Insert the carriage bolt from the side with the head, ensuring the square neck seats properly in the recess. — Position and Insert Bolt 3. Place a nut (and washer, if desired) onto the threaded end of the bolt. Hold the bolt head steady to prevent spinning, and tighten the nut using a wrench until the joint is secure. The square neck will prevent the bolt from turning. — Tighten Nut Securely ## Product details | Field | Value | |---|---| | Pack Quantity | 25 bolts | | Weight per pack | 0.399 kg (approx. 0.88 lbs) | | Cost per bolt | ₹120 per bolt | | Primary Use | Fastening wood to wood or metal | | Application Environment | Outdoor, humid, coastal | | Brand | Hillman | | Model Number | 832522 | | Material | Stainless Steel | | Finish | Stainless Steel | | Diameter | 0.25 inches (1/4") | | Length | 2.5 inches (2-1/2") | | Thread Size | 1/4"-20 UNC (Partially Threaded) | | Head Style | Round Flat Head | | Neck Style | Square | | Hardness Grade | Grade 2 | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | ## Frequently asked questions ### How do I choose the right size carriage bolt? Measure the combined thickness of the materials being joined, then add room for the washer and nut. Choose a diameter suited to the load (thicker for structural joints) and a length that leaves a few threads exposed past the nut. For these Hillman bolts, the 1/4" diameter and 2-1/2" length are suitable for medium-duty wood-to-wood or wood-to-metal applications. ### What is a carriage bolt used for? A carriage bolt has a smooth domed head and a square neck under the head that locks into wood or a squared hole, preventing the bolt from turning while you tighten the nut. It is commonly used for wood-to-wood and wood-to-metal joints such as decking, fencing, playground equipment, and timber framing. ### Are these Hillman carriage bolts rust-resistant for India? Yes, these bolts are made of stainless steel, which provides superior rust prevention. This makes them highly suitable for outdoor use in India's humid and monsoon conditions, offering better longevity compared to standard steel fasteners. ### Can I use these bolts for heavy-duty structural projects? These are Grade 2 carriage bolts, suitable for general woodworking and medium-duty applications. For heavy-duty structural joints requiring higher load-bearing capacity, consider Grade 5 or Grade 8 bolts, which offer greater tensile strength. ### Do I need a washer with these carriage bolts? The flat head design of these carriage bolts is intended to eliminate the need for a separate washer in many applications, providing a semi-flush finish. However, for added load distribution or to protect softer wood surfaces, a washer can still be used if desired. ### How to buy original Hillman carriage bolts in India? Purchase original Hillman carriage bolts from authorized US retailers exclusively imported for you by CrowCrowCrow. They are factory-sealed, sourced directly, and all customs duties and GST are included in the listed price. Delivery is via ExpressBox tracked shipping, arriving in 13-15 days. ## Compliance No product-specific compliance warnings identified. Standard imported-goods terms apply: customs duties & GST paid; for personal use in India; follow the manufacturer's usage instructions on the packaging. ## Images 1. https://images.crowcrowcrow.com/B000DEN5L4-0.webp 2. https://images.crowcrowcrow.com/B000DEN5L4-3.webp --- Source: https://crowcrowcrow.com/p/hillman-832522-stainless-steel-carriage-bolt-2-1-2-inch/cuu1588 Returns: 14 days, free pickup, full refund on genuine issues. Shipping: Free across India, 13-15 days. Prices are all-inclusive (duties + GST).