# Hillman Stainless Steel Carriage Bolt 3/8" x 4" (0.95cm x 10.16cm) 25-Pack | Self-Locking Head for Wood or Metal **Brand:** Hillman **SKU:** sen8916 **ASIN:** B000H5S29Y **Canonical URL:** https://crowcrowcrow.com/p/hillman-stainless-steel-carriage-bolt-8in-4in-832642/sen8916 **Subcategory:** Categories **Availability:** in_stock **Price (INR, all-inclusive):** ₹7,061 **Discount:** 26% **Customer rating:** 3.80/5 from 16 ratings ## Description Hillman Stainless Steel Carriage Bolts (3/8" x 4", 25-pack) offer secure fastening for wood-to-wood or wood-to-metal applications. Their self-locking square head and rust-resistant stainless steel ensure durability. Imported for India, all duties included, delivered via ExpressBox. ## Highlights - Rust-Resistant Stainless Steel — Superior corrosion resistance and a bright finish ensure longevity and performance, preventing unsightly rust marks on your projects, even in humid Indian climates. - Self-Locking Square Head — The square underside locks into place, eliminating the need for a driving tool and preventing the bolt from spinning during installation, saving you time and effort. - Semi-Flush Finish — The flat head design provides a clean, semi-flush appearance on the surface of your materials, enhancing the overall look of your finished project. - 25-Pack Value — This convenient 25-pack offers excellent value for DIY enthusiasts and professionals, ensuring you have enough bolts for multiple projects without frequent reordering. ## 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 **Engineered for Durability and Ease of Use** — Hillman Stainless Steel Carriage Bolts are engineered for both strength and user convenience. The stainless steel construction guarantees exceptional rust prevention and a lasting bright finish, making them ideal for outdoor or exposed applications in India's diverse climate. The self-locking square head is a key design feature that simplifies installation by preventing rotation and negating the need for additional tools or washers. This thoughtful engineering ensures a secure, semi-flush finish and a more efficient building process, whether you're working on furniture, fencing, or general repairs. **Ideal for Wood-to-Metal Projects, Consider Alternatives for Heavy Load Bearing** — These 3/8" x 4" carriage bolts are perfect for fastening wooden components to wood or metal surfaces, offering a secure and aesthetically pleasing connection. They are particularly well-suited for applications where a smooth, semi-flush finish is desired. However, for extremely heavy load-bearing applications or situations requiring specialized tensile strength beyond standard construction, consider bolts with higher grade ratings or specific engineering specifications. For projects requiring precise alignment in delicate electronics or fine woodworking, ensure the 3/8" diameter is appropriate for your material thickness and hole size. ## How to use 1. Choose the 3/8" x 4" Hillman carriage bolt for your project, ensuring the length is suitable for the combined thickness of the materials you are joining. Verify the 3/8" diameter fits your pre-drilled holes. — Select Appropriate Bolt 2. Place the material to be fastened against the receiving surface. Insert the carriage bolt through the aligned holes, ensuring the square head sits flush against the surface for a clean finish. — Position and Insert Bolt 3. On the opposite side, place a compatible 3/8" nut (not included) onto the bolt's threaded end. Tighten the nut using an appropriate wrench or socket until the connection is secure. The bolt head will not spin due to its self-locking design. — Secure with Nut ## Product details | Field | Value | |---|---| | Primary Material | Stainless Steel | | Intended Use | Fastening wood to wood or metal | | Pack Quantity | 25 bolts | | Weight per Pack | 1.405 kg (3.1 lbs) | | Cost per bolt | ₹282 per bolt | | Brand | Hillman | | Material | Stainless Steel | | Head Style | Flat | | Bolt Type | Carriage Bolt | | Diameter | 0.375 inches (0.95 cm) | | Length | 4 inches (10.16 cm) | | Thread Size | 3/8-4 UNC | | Color | Silver | | Finish | Stainless Steel | | Country of Origin | Not stated by manufacturer — US retail version, sourced from authorized US retailers | ## Frequently asked questions ### How to buy original Hillman Stainless Steel Carriage Bolts in India? Purchase original Hillman Stainless Steel Carriage Bolts from crowcrowcrow.com. We import directly from authorized US retailers, ensuring factory-sealed products. All customs duties and GST are included in the listed price, and your order is shipped via ExpressBox with tracking for a transparent and reliable delivery experience. ### Are these Hillman carriage bolts suitable for outdoor use in India? Yes, these Hillman carriage bolts are made from stainless steel, which provides superior rust prevention and a bright finish, making them highly suitable for outdoor applications in India's varied climate. Their corrosion resistance ensures durability and longevity for your projects. ### What is the best use for Hillman carriage bolts? Hillman carriage bolts are best used for fastening a wooden face to either wood or metal. Their flat head provides a semi-flush finish, and the self-locking square underside eliminates the need for a washer or driving tool, making them ideal for applications where a clean look and simple installation are desired. ### Can I use these bolts for heavy-duty structural applications? These carriage bolts are designed for general fastening of wood to wood or metal. While they offer good strength, for extremely heavy-duty structural applications requiring specific load-bearing capacities or higher tensile strength, it's advisable to consult engineering specifications or opt for bolts with higher grade ratings. ### Do I need a washer with these carriage bolts? No, you do not need a washer with these Hillman carriage bolts. The square underside of the head is designed to be self-locking, which prevents it from spinning when tightened and eliminates the need for a separate washer. ### What is the thread type and size of these bolts? These Hillman carriage bolts feature a 3/8-4 UNC thread size, which is a standard coarse thread. The '4' indicates 4 threads per inch, and 'UNC' stands for Unified National Coarse thread, ensuring compatibility with standard nuts and drilled holes. ### How do these bolts compare to local Indian alternatives? Hillman carriage bolts offer guaranteed authenticity and superior stainless steel construction for rust prevention, often exceeding the quality and finish of generic local alternatives. While local options may be cheaper, they may not offer the same level of corrosion resistance or the convenience of a self-locking head, and their origin may be less transparent. ## 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/B000H5S29Y-0.webp 2. https://images.crowcrowcrow.com/B000H5S29Y-3.webp --- Source: https://crowcrowcrow.com/p/hillman-stainless-steel-carriage-bolt-8in-4in-832642/sen8916 Returns: 14 days, free pickup, full refund on genuine issues. Shipping: Free across India, 20-23 days. Prices are all-inclusive (duties + GST).