ASTM A307-21 Grade A Hex Bolt 1/2 × 3-1/2 in – UNC – Plain Manufacturer: TTBOLT SKU: TTB-A307HEX-A-050-350-UNC-PL Add to compare list Email a friend Material specification: ASTM A307-21 Product Type: Hex Bolt Diameter: 1/2 Length: 3-1/2 in Thread: UNC, 13 TPI Material: Carbon Steel Grade: A Finish: Plain ASTM A307-21 Grade A Hex Bolt 1/2 × 3-1/2 in – UNC – Plain is a Hex Bolt manufactured and supplied by TTBolt in accordance with ASTM A307-21.This exact catalog variant has size 1/2 × 3-1/2 in, thread UNC 13 TPI, material Carbon Steel, grade A and finish Plain. It is intended for mechanically fastened joints that require the stated dimensions, thread, grade and finish.Technical data for this exact variantStandardASTM A307-21Product typeHex BoltSize1/2 × 3-1/2 inThreadUNC 13 TPIThread directionRight HandMaterialCarbon SteelGrade / property classAFinishPlainHead height23/64 inWidth across flats3/4 inBasic thread length3-1/2 inPlain shank length0 inMass per piece92.147 g/pcMass per 100 pieces9.2147 kg/100 pcSelection and ordering notesBefore ordering, confirm the required size (1/2 × 3-1/2 in), thread (UNC 13 TPI), grade (A) and finish (Plain). Price calculations may use the theoretical mass shown above; final manufactured mass can vary with dimensional tolerances, chamfers, radii, coating thickness and production process. Technical drawing & data Download technical PDF Technical data sheet TTBoltIndustrial Fasteners Engineering Data Sheet DocumentTechnical Data Sheet StandardASTMA307HEX GradeA Issued2026-10-04 فارسی English پیچ شش گوش ASTMA307HEX گرید A سایز 1/2 × 3-1/2 اینچ UNC ساده 1/2 x 3.5 in | A | پوشش Plain جدول ابعادی پارامترنماد حداقلحداکثر / اسمی واحد قطر اسمیd-0.5in گام رزوهn-13TPI عرض آچارخورs-0.75in ارتفاع سرk-0.364in طولl-3.5in مشخصات محصول رزوه1/2 13 TPI UNC جهت رزوهراست‌گرد گریدA پوششPlain متریالCarbon Steel فرم رزوهUnified 60 deg یادداشت‌های فنی 1. تمام ابعاد بر حسب اینچ هستند مگر آنکه خلاف آن ذکر شده باشد. 2. تصاویر محصول از مدل Master در SolidWorks و با همان پارامترهای این ردیف تولید می‌شوند. 3. مقادیر حداقل و حداکثر از جدول ابعادی ASTMA307HEX گرفته شده‌اند؛ جایی که استاندارد تلرانس تعریف نکرده، تنها مقدار اسمی درج شده است. 4. وزن‌های درج‌شده در فروشگاه نظری‌اند و برای برآورد قیمت کاربرد دارند. شماره قطعهTTB-A307HEX-A-050-350-UNC-PL Hex Bolt - ASTMA307HEX 1/2 x 3.5 in | A | Plain Finish DIMENSION TABLE ParameterSymbol MinMax / Nominal Unit Nominal diameterd-0.5in Threads per inchn-13TPI Width across flatss-0.75in Head heightk-0.364in Lengthl-3.5in PRODUCT DATA Thread1/2 13 TPI UNC Thread directionRight hand GradeA FinishPlain MaterialCarbon Steel Thread formUnified 60 deg TECHNICAL NOTES 1. All dimensions are in inches unless stated otherwise. 2. Product views are generated from the SolidWorks master using the parameters of this row. 3. Minimum and maximum values are taken from the ASTMA307HEX dimension table; where the standard defines no tolerance, only the nominal value is shown. 4. Catalog weights are theoretical and intended for price estimation. Part numberTTB-A307HEX-A-050-350-UNC-PL Products specifications Attribute name Attribute value Standard ASTM A307-21 Geometry Reference ASME B18.31.3-2014 (R2025) Thread Reference ASME B1.1-2024 Product Type Threaded Rod — Controlled Cut Length Material Carbon Steel Property Class A Finish Plain Market Status Common Estimated Weight 92.147 g/pc Thread Thread Type UNC Thread Pitch 13 TPI Dimensions Diameter 1/2 Length 3-1/2 in
