ASME B18.21.1 Regular Spring-Lock Washer No.12 – Carbon Steel – Zinc Plated Manufacturer: TTBOLT SKU: TTB-ASMEB18.21.1-REG-NO.12-CS-ZN Add to compare list Email a friend ASME B18.21.1 Regular Helical Spring-Lock WasherNominal size: No.12Inside diameter: 0.22–0.227 inMaximum outside diameter: 0.377 inMinimum mean section thickness: 0.056 inMinimum section width: 0.07 inMinimum bearing width: 0.049 inMaterial: Carbon SteelFinish: Zinc PlatedTheoretical mass: 0.486 g/pc ASME B18.21.1 Regular Spring-Lock Washer No.12 – Carbon Steel – Zinc Plated is an inch-series Regular Helical Spring-Lock Washer conforming to the dimensional requirements of ASME B18.21.1, Table 1. This exact catalog variant has nominal size No.12, material Carbon Steel, Regular series, and Zinc Plated finish.Dimensions of this ASME B18.21.1 washerNominal washer sizeNo.12Inside diameter0.22–0.227 inMaximum outside diameter0.377 inMinimum mean section thickness0.056 inMinimum section width0.07 inMinimum bearing width0.049 inMaterialCarbon SteelSeriesRegularFinishZinc PlatedMass per piece0.486 g/pcEngineering and ordering notesTable dimensions are in inches and apply before coating. The word “lock” is the historical product-family name and does not guarantee permanent locking of a bolted joint. Confirm the required material grade, finish specification, coating thickness, joint preload, vibration conditions, and service environment before ordering. For electroplated carbon-steel washers, hydrogen-embrittlement relief and the required post-plating test must be specified and verified. The displayed mass is a theoretical estimate based on the tabulated section geometry; final manufactured mass may vary within dimensional and coating tolerances. Technical drawing & data Download technical PDF Technical data sheet TTBoltIndustrial Fasteners Engineering Data Sheet DocumentTechnical Data Sheet StandardASMEB18.21.1 GradeRegular Issued2026-10-04 فارسی English واشر فنری قفلی سری معمولی ASME B18.21.1 سایز No.12، فولاد کربنی، آبکاری روی No.12 in | Regular | پوشش Zinc Plated جدول ابعادی پارامترنماد حداقلحداکثر / اسمی واحد قطر اسمیd--in قطر خارجیD-0.377in قطر داخلیd10.220.227in ضخامتh0.056-in مشخصات محصول رزوهNo.12 جهت رزوهراست‌گرد گریدRegular پوششZinc Plated 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 ASMEB18.21.1 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-ASMEB18.21.1-REG-NO.12-CS-ZN Regular Helical Spring-Lock Washer - ASMEB18.21.1 No.12 in | Regular | Zinc Plated Finish DIMENSION TABLE ParameterSymbol MinMax / Nominal Unit Nominal diameterd--in Outside diameterD-0.377in Inside diameterd10.220.227in Thicknessh0.056-in PRODUCT DATA ThreadNo.12 Thread directionRight hand GradeRegular FinishZinc Plated 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 ASMEB18.21.1 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-ASMEB18.21.1-REG-NO.12-CS-ZN Products specifications Attribute name Attribute value Standard ASME B18.21.1 Product Type Regular Helical Spring-Lock Washer Nominal Size No.12 Series Regular Inner Diameter Range 0٫22–0٫227 in Maximum Outer Diameter 0٫377 in Minimum Mean Section Thickness 0٫056 in Minimum Section Width 0٫07 in Minimum Bearing Width 0٫049 in Material Carbon Steel Finish Zinc Plated Unit System in Estimated Weight 0٫486 g/pc
