ASTM A354 Grade BC Hex Bolt 7/8 × 4-1/2 in – UNC 9 TPI – Zinc Plated Manufacturer: TTBOLT SKU: TTB-A354-BC-0875X450-UNC-ZN Add to compare list Email a friend Standard: ASTM A354-26 Geometry: ASME B18.2.1 Product Type: Hex Bolt Diameter: 7/8 Length: 4-1/2 in Thread: UNC, 9 TPI Material: Alloy Steel Grade: BC Finish: Zinc Plated ASTM A354 Grade BC Hex Bolt 7/8 × 4-1/2 in – UNC 9 TPI – Zinc Plated is a Hex Bolt manufactured and supplied by TTBolt in accordance with ASTM A354.This exact catalog variant has size 7/8 × 4-1/2 in, thread UNC 9 TPI, material Alloy Steel, grade BC and finish Zinc Plated. It is intended for mechanically fastened joints that require the stated dimensions, thread, grade and finish.Technical data for this exact variantStandardASTM A354Product typeHex BoltSize7/8 × 4-1/2 inThreadUNC 9 TPIThread directionRight HandMaterialAlloy SteelGrade / property classBCFinishZinc PlatedHead height39/64 inWidth across flats1-5/16 inBasic thread length2 inPlain shank length2-1/2 inMass per piece427.864 g/pcMass per 100 pieces42.7864 kg/100 pcSelection and ordering notesBefore ordering, confirm the required size (7/8 × 4-1/2 in), thread (UNC 9 TPI), grade (BC) and finish (Zinc Plated). 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 StandardASTMA354 GradeBC Issued2026-10-05 فارسی English پیچ ششگوش ASTM A354 گرید BC سایز 7/8 × 4-1/2 اینچ UNC 9 TPI آبکاری روی 7/8 x 4.5 in | BC | پوشش Zinc Plated جدول ابعادی پارامترنماد حداقلحداکثر / اسمی واحد قطر اسمیd-0.875in گام رزوهn-9TPI عرض آچارخورs-1.312in ارتفاع سرk-0.604in طولl-4.5in مشخصات محصول رزوه7/8 9 TPI UNC جهت رزوهراستگرد گریدBC پوششZinc Plated متریالAlloy 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 ASTMA354 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-A354-BC-0875X450-UNC-ZN Hex Bolt - ASTMA354 7/8 x 4.5 in | BC | Zinc Plated Finish DIMENSION TABLE ParameterSymbol MinMax / Nominal Unit Nominal diameterd-0.875in Threads per inchn-9TPI Width across flatss-1.312in Head heightk-0.604in Lengthl-4.5in PRODUCT DATA Thread7/8 9 TPI UNC Thread directionRight hand GradeBC FinishZinc Plated MaterialAlloy 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 ASTMA354 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-A354-BC-0875X450-UNC-ZN Products specifications Attribute name Attribute value Material Specification ASTM A354-26 Geometry Reference ASME B18.2.1-2012 (R2021) Thread Reference ASME B1.1-2024 Standard ASTM A354 Product Type Hex Bolt Material Alloy Steel Property Class BC Finish Zinc Plated Estimated Weight 427.864 g/pc g/pc Market Status Common Thread Thread Type UNC Thread Pitch 9 TPI Dimensions Diameter 7/8 Length 4-1/2 in