ASME B18.3 ASTM A574 Socket Head Cap Screw #1 × 5/16 in – UNC 64 TPI – Black Oxide

Manufacturer: TTBOLT
SKU: TTB-ASMEB18.3-A574-#1X031-UNC-64TPI-BO
ASME B18.3 socket head cap screw, #1 × 5/16 in, ASTM A574, Alloy Steel, Black Oxide, UNC 64 TPI. Head Ø 1/8 in; head height 5/64 in; hex socket 1/16 in.

ASME B18.3 ASTM A574 Socket Head Cap Screw #1 × 5/16 in – UNC 64 TPI – Black Oxide is a Socket Head Cap Screw manufactured and supplied by TTBolt in accordance with ASME B18.3.

This exact catalog variant has size #1 × 5/16 in, thread UNC 64 TPI, material Alloy Steel, grade ASTM A574 and finish Black Oxide. It is intended for mechanically fastened joints that require the stated dimensions, thread, grade and finish.

Technical data for this exact variant

StandardASME B18.3
Product typeSocket Head Cap Screw
Size#1 × 5/16 in
ThreadUNC 64 TPI
Thread directionRight Hand
MaterialAlloy Steel
Grade / property classASTM A574
FinishBlack Oxide
Head diameter1/8 in
Head height5/64 in
Socket size1/16 in
Minimum socket depth1/32 in
Basic thread length5/8 in
Plain shank length0 in
Mass per piece0.211 g/pc
Mass per 100 pieces0.0211 kg/100 pc

Selection and ordering notes

Before ordering, confirm the required size (#1 × 5/16 in), thread (UNC 64 TPI), grade (ASTM A574) and finish (Black Oxide). 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

Technical data sheet
TTBolt

Industrial Fasteners Engineering Data Sheet

Document
Technical Data Sheet
Standard
ASMEB18.3
Grade
ASTM A574
Issued
2026-10-04

پیچ آلن سر استوانه‌ای اینچی ASME B18.3 سایز #1 × 5/16 اینچ، فولاد آلیاژی، گرید ASTM A574، سیاه‌کاری

#1 x 0.31 in | ASTM A574 | پوشش Black Oxide

جدول ابعادی

پارامترنماد حداقلحداکثر / اسمی واحد
قطر اسمیd--in
گام رزوهn-64TPI
ارتفاع سرk-0.073in
طولl-0.3125in

مشخصات محصول

رزوه#1 64 TPI UNC
جهت رزوهراست‌گرد
گریدASTM A574
پوششBlack Oxide
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 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 قطعه
TTB-ASMEB18.3-A574-#1X031-UNC-64TPI-BO

Socket Head Cap Screw - ASMEB18.3

#1 x 0.31 in | ASTM A574 | Black Oxide Finish

DIMENSION TABLE

ParameterSymbol MinMax / Nominal Unit
Nominal diameterd--in
Threads per inchn-64TPI
Head heightk-0.073in
Lengthl-0.3125in

PRODUCT DATA

Thread#1 64 TPI UNC
Thread directionRight hand
GradeASTM A574
FinishBlack Oxide
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 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 number
TTB-ASMEB18.3-A574-#1X031-UNC-64TPI-BO

Products specifications

Attribute name Attribute value
Standard ASME B18.3
Product Type Socket Head Cap Screw
Head Diameter 1/8 in
Head Height 5/64 in
Socket Size 1/16 in
Socket Depth Min 1/32 in
Thread Length Basic 5/8 in
Material Alloy Steel
Property Class / Grade ASTM A574
Finish Black Oxide
Unit System in
Estimated Weight 0.211 g/pc
Market Status Standard
Thread
Thread Type UNC
Thread Pitch 64 TPI
Thread Direction Right Hand
Dimensions
Diameter #1
Length 5/16 in