ASME B18.2.1 Grade B Hex Bolt 1-1/8 × 12 in – 8UN 8 TPI – Plain Manufacturer: TTBOLT SKU: TTB-ASMEB18.2.1-B-1125X1200-8UN-8TPI-PL Add to compare list Email a friend ASME B18.2.1 Grade B Hex BoltSize: 1-1/8 × 12 inThread: 8UN 8 TPIThread length: 2-3/4 inWidth across flats: 1-11/16 inHead height: 25/32 inMaterial: Carbon SteelFinish: PlainEstimated mass: 1708.341 g/pc This Hex Bolt is manufactured and supplied by TTBolt in accordance with ASME B18.2.1.This exact catalog variant has size 1-1/8 × 12 in, thread 8UN 8 TPI, material Carbon Steel, grade B and finish Plain. It is intended for mechanically fastened joints that require the stated dimensions, thread, grade and finish.Technical data for this exact variantStandardASME B18.2.1Product typeHex BoltSize1-1/8 × 12 inThread8UN 8 TPIThread directionRight HandMaterialCarbon SteelGrade / property classBFinishPlainHead height25/32 inWidth across flats1-11/16 inBasic thread length2-3/4 inPlain shank length9-1/4 inMass per piece1708.341 g/pcMass per 100 pieces170.8341 kg/100 pcSelection and ordering notesBefore ordering, confirm the required size (1-1/8 × 12 in), thread (8UN 8 TPI), grade (B) 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 StandardASMEB18.2.1 GradeB Issued2026-10-05 فارسی English پیچ ششگوش ASME B18.2.1 گرید B سایز 1-1/8 × 12 اینچ، رزوه 8UN 8 TPI، ساده 1-1/8 x 12 in | B | پوشش Plain جدول ابعادی پارامترنماد حداقلحداکثر / اسمی واحد قطر اسمیd-1.125in گام رزوهn-8TPI عرض آچارخورs-1.688in ارتفاع سرk-0.78in طولl-12in مشخصات محصول رزوه1-1/8 8 TPI 8UN جهت رزوهراستگرد گریدB 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 ASMEB18.2.1 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-ASMEB18.2.1-B-1125X1200-8UN-8TPI-PL Hex Bolt - ASMEB18.2.1 1-1/8 x 12 in | B | Plain Finish DIMENSION TABLE ParameterSymbol MinMax / Nominal Unit Nominal diameterd-1.125in Threads per inchn-8TPI Width across flatss-1.688in Head heightk-0.78in Lengthl-12in PRODUCT DATA Thread1-1/8 8 TPI 8UN Thread directionRight hand GradeB 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 ASMEB18.2.1 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-ASMEB18.2.1-B-1125X1200-8UN-8TPI-PL Products specifications Attribute name Attribute value Standard ASME B18.2.1 Product Type Hex Bolt Thread Length 2-3/4 in Width Across Flats 1-11/16 in Head Height 25/32 in Material Carbon Steel Property Class / Grade B Finish Plain Unit System in Estimated Weight 1708.341 g/pc Thread Thread Type 8UN Thread Pitch 8 TPI Thread Direction Right Hand Dimensions Diameter 1-1/8 in Length 12 in