GrabCAD 模型信息
Parametric UNC Hexagon Nut Generator (STEP, Customizable, CNC & 3D Printing) · 模型 123874
This is a parametric UNC hexagon nut model generated using an automated CAD system. Unlike fixed models, this nut is not a one-off design — it can be regenerated with different parameters. Specifications of this model: Thread designation: [X] (1/4-20 through 1-8, UNC coarse series) Thread profile: [X] (helical 60° right-hand internal thread, or plain bore when thread generation is off) Product series: Hex nut, ASME B18.2.2 Table 4 Standard: Based on ASME B1.1 (thread) and ASME B18.2.2 (nut) Use cases: Imperial / inch-based assemblies Mating part for UNC hexagon head screws Retrofit and repair of US-standard machinery CNC machinery Mechanical design prototyping ⚙️ Generate your own UNC hexagon nut (any parameters): https://meta-matic. com/en/3d/hexagon-nut-unc/ You can freely adjust: Thread designation (1/4-20, 5/16-18, 3/8-16, 7/16-14, 1/2-13, 9/16-12, 5/8-11, 3/4-10, 7/8-9, 1-8) Thread generation (helical thread or plain bore) and instantly download a STEP file. Why this matters: Most models here are static. This system allows you to generate exactly what you need. Note: Width across flats and nut thickness are fixed by the standard for each designation, so the designation alone determines the whole shape. For 7/16-14 and 9/16-12 the nut width across flats (11/16″ and 7/8″) is larger than that of the matching hex cap screw head (5/8″ and 13/16″). This is not an error: the cap screw heads were reduced in a later revision of ASME B18.2.1 while the nut series kept its traditional wrench sizes, so those two sizes genuinely take two different wrenches. The other eight sizes match the bolt exactly. Pitch is derived as 25.4 / TPI and all inch values are converted with 1 inch = 25.4 mm exactly, so the STEP file itself is in millimetres. This is a reference implementation based on basic dimensions; tolerances and thread class fits are not applied.
- 格式
- STEP / IGES、Rendering
- 分类
- Machine design、Robotics、Tools
- 标签
- unc、step、parametric、nut、inch nut、imperial、hexagon nut、hex nut、generator、fastener、engineering、customizable、asme、3d printing
- 数据更新
- 2026-10-18T17:58:02Z
