Introduction Fasteners (screws, bolts, nuts, washers, etc.) are critical components in virtually every manufactured product and facility maintenance process. Although individually inexpensive, fasteners often comprise a large share of unique parts in a company’s inventory. For example, a factory’s bill of materials might be 40–60% fastener-related line items, yet these constitute only ~10–20% of total parts cost. This imbalance means procurement teams spend significant time and resources managing dozens or hundreds of fastener SKUs (Stock Keeping Units) for relatively low spend. Fastener standardization is the practice of reducing the variety [...]

Self-tapping and thread-forming screws are widely used to join parts without pre-tapped holes. These fasteners are categorized by their point and thread geometry, which determines how they engage the material (either cutting/chipping or displacing material). Common types include Type A (coarse thread, pointed), Type B (fine thread, blunt), Type AB (combination of A and B), and Type 25/BT (chip-cutting point for plastics), as well as advanced thread-forming designs like Taptite, Plastite, Hi-Lo (double-lead), and EJOT PT® screws. This report explains how each type works, compares their performance (torque-to-strip ratios, thread [...]

What Are Metric Thread Tolerance Classes? Metric thread tolerance classes are a standardized way to specify how tightly or loosely a bolt and nut will fit together. If you’ve seen designations like “M10 x 1.5 – 6H/6g”, those last characters (6H/6g) are the tolerance classes for the internal thread (nut) and external thread (bolt). In simple terms: Tolerance classes ensure compatibility: They control the allowed variation in thread size so that any bolt of a given class will fit any nut of the matching class. Prevent jamming or wobbling: By [...]

The table below lists ISO metric screw thread sizes from M1 up to M100. For each size it gives the standard coarse and fine thread pitches (in millimeters). The “Nearest Inch Thread Size” column shows the closest common Unified thread (UNC/UNF) nominal size for reference. If no direct UNC/UNF equivalent exists, it is marked “N/A”. (Fine-pitch variants are blank where none are defined.) Metric Thread: Nominal diameter (M#) in millimeters. Coarse/Fine Pitch: Standard ISO metric pitch in millimeters. Inch Equivalent: Closest Unified nominal size (e.g. 1/4-20 UNC) or N/A if [...]

Introduction In an era of Industry 4.0, artificial intelligence (AI) is revolutionizing the global fastener industry. Manufacturers and distributors are deploying AI to drive efficiency, improve quality, and deliver smarter services. AI tools are being used at every stage of the fastener supply chain – from automated machining and inspection in factories to data-driven demand forecasting and sales support. This report examines current real-world AI applications in fastener manufacturing, quality control, predictive maintenance, supply chain optimization and sales automation, and evaluates their impact on future market trends, competitive dynamics and [...]

Fasteners are critical components in the automotive industry, playing a vital role in assembling vehicles safely and efficiently. From tiny screws in electronics to heavy-duty bolts in chassis and engines, fasteners ensure structural integrity, performance, and safety across every part of a vehicle. 1. Importance of Fasteners in Automotive Manufacturing Automobiles are complex systems made up of thousands of individual components. Fasteners hold these parts together, including engines, transmissions, suspension systems, body panels, interiors, and electronic modules. A failure in even a single fastener can compromise safety, performance, or durability, [...]

Fasteners are the unsung heroes of engineering. From the simplest wooden pegs to advanced aerospace-grade screws, they hold together everything in our modern world. While often overlooked, the history of fasteners mirrors the progress of human technology, reflecting innovation, material science, and industrial needs over centuries. Early Beginnings: Rivets and Pegs The earliest fasteners were basic but effective. Ancient civilizations relied on wooden pegs, leather ties, and primitive nails to assemble tools, furniture, and structures. By 3,000 BCE, the Egyptians had developed metal nails, primarily copper and bronze, for woodworking [...]