ASME B18.3 18-8 Stainless Socket Head Cap Screw 3/8 × 4 in – UNC 16 TPI – Plain Manufacturer: TTBOLT SKU: TTB-ASMEB18.3-188SS-0375X400-UNC-16TPI-PL Add to compare list Email a friend ASME B18.3 socket head cap screw, 3/8 × 4 in, 18-8 Stainless, Stainless Steel, Plain, UNC 16 TPI. Head Ø 9/16 in; head height 3/8 in; hex socket 5/16 in. ASME B18.3 18-8 Stainless Socket Head Cap Screw 3/8 × 4 in – UNC 16 TPI – Plain is a Socket Head Cap Screw manufactured and supplied by TTBolt in accordance with ASME B18.3.This exact catalog variant has size 3/8 × 4 in, thread UNC 16 TPI, material Stainless Steel, grade 18-8 Stainless 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 B18.3Product typeSocket Head Cap ScrewSize3/8 × 4 inThreadUNC 16 TPIThread directionRight HandMaterialStainless SteelGrade / property class18-8 StainlessFinishPlainHead diameter9/16 inHead height3/8 inSocket size5/16 inMinimum socket depth3/16 inBasic thread length1-1/4 inPlain shank length2-3/4 inMass per piece63.528 g/pcMass per 100 pieces6.3528 kg/100 pcSelection and ordering notesBefore ordering, confirm the required size (3/8 × 4 in), thread (UNC 16 TPI), grade (18-8 Stainless) 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 StandardASMEB18.3 Grade18-8 Stainless Issued2026-10-04 فارسی English پیچ آلن سر استوانهای اینچی ASME B18.3 سایز 3/8 × 4 اینچ، استنلس استیل، گرید 18-8 Stainless، ساده 3/8 x 4 in | 18-8 Stainless | پوشش Plain جدول ابعادی پارامترنماد حداقلحداکثر / اسمی واحد قطر اسمیd-0.375in گام رزوهn-16TPI ارتفاع سرk-0.375in طولl-4in مشخصات محصول رزوه3/8 16 TPI UNC جهت رزوهراستگرد گرید18-8 Stainless پوششPlain متریالStainless 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 ASMEB18.3 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-ASMEB18.3-188SS-0375X400-UNC-16TPI-PL Socket Head Cap Screw - ASMEB18.3 3/8 x 4 in | 18-8 Stainless | Plain Finish DIMENSION TABLE ParameterSymbol MinMax / Nominal Unit Nominal diameterd-0.375in Threads per inchn-16TPI Head heightk-0.375in Lengthl-4in PRODUCT DATA Thread3/8 16 TPI UNC Thread directionRight hand Grade18-8 Stainless FinishPlain MaterialStainless 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 ASMEB18.3 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-ASMEB18.3-188SS-0375X400-UNC-16TPI-PL Products specifications Attribute name Attribute value Standard ASME B18.3 Product Type Socket Head Cap Screw Head Diameter 9/16 in Head Height 3/8 in Socket Size 5/16 in Socket Depth Min 3/16 in Thread Length Basic 1-1/4 in Material Stainless Steel Property Class / Grade 18-8 Stainless Finish Plain Unit System in Estimated Weight 63.528 g/pc Market Status Common Thread Thread Type UNC Thread Pitch 16 TPI Thread Direction Right Hand Dimensions Diameter 3/8 Length 4 in