ASTM A194/A194M Grade 2HM Heavy Hex Nut 3-1/2 – 8UN – PTFE Coated

Manufacturer: TTBOLT
SKU: TTB-A194-2HM-350-8UN-PTFE
Material specification: ASTM A194/A194M-26 Product Type: Heavy Hex Nut Diameter: 3-1/2 Thread: 8UN, 8 TPI Width Across Flats (basic): 5-3/8 in Width Across Flats (limits): 5.2–5.375 in Width Across Corners (limits): 5.928–6.207 in Nut Height (basic): 3-7/16 in Nut Height (limits): 3.37–3.506 in Material: Carbon Steel Grade: 2HM Finish: PTFE Coated Geometry reference: ASME B18.2.2-2022

ASTM A194/A194M Grade 2HM Heavy Hex Nut 3-1/2 – 8UN – PTFE Coated is a Heavy Hex Nut manufactured and supplied by TTBolt in accordance with ASTM A194/A194M.

This exact catalog variant has size 3-1/2, thread 8UN 8 TPI, material Carbon Steel, grade 2HM and finish PTFE Coated. It is intended for compatible threaded assemblies where the specified thread, grade and bearing geometry are required.

Technical data for this exact variant

StandardASTM A194/A194M
Product typeHeavy Hex Nut
Size3-1/2
Thread8UN 8 TPI
Thread directionRight Hand
MaterialCarbon Steel
Grade / property class2HM
FinishPTFE Coated
Width across flats range5.2–5.375 in
Width across corners range5.928–6.207 in
Nut height range3.37–3.506 in
Mass per piece6436.836 g/pc
Mass per 100 pieces643.6836 kg/100 pc

Selection and ordering notes

Before ordering, confirm the required size (3-1/2), thread (8UN 8 TPI), grade (2HM) and finish (PTFE Coated). 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
ASTMA194
Grade
2HM
Issued
2026-10-04

مهره شش‌گوش سنگین ASTMA194 گرید 2HM سایز 3-1/2 پوشش PTFE

3-1/2 in | 2HM | پوشش PTFE Coated

نماهای واقعی محصول

ISO
ایزومتریک
Rear
نمای مکمل
Side
نمای جانبی

جدول ابعادی

پارامترنماد حداقلحداکثر / اسمی واحد
قطر اسمیd-3.5in
گام رزوهn-8TPI
عرض آچارخورs5.25.375in
عرض روی گوشه‌هاe5.9286.207in
ارتفاع مهرهm3.373.506in

مشخصات محصول

رزوه3-1/2 8 TPI 8UN
جهت رزوهراست‌گرد
گرید2HM
پوششPTFE Coated
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 ASTMA194 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-A194-2HM-350-8UN-PTFE

Heavy Hex Nut - ASTMA194

3-1/2 in | 2HM | PTFE Coated Finish

ACTUAL PRODUCT VIEWS

ISO
ISO
Rear
Rear
Side
Side

DIMENSION TABLE

ParameterSymbol MinMax / Nominal Unit
Nominal diameterd-3.5in
Threads per inchn-8TPI
Width across flatss5.25.375in
Width across cornerse5.9286.207in
Nut heightm3.373.506in

PRODUCT DATA

Thread3-1/2 8 TPI 8UN
Thread directionRight hand
Grade2HM
FinishPTFE Coated
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 ASTMA194 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-A194-2HM-350-8UN-PTFE

Products specifications

Attribute name Attribute value
Material Specification ASTM A194/A194M-26
Common Requirements ASTM A962/A962M-26
Geometry Reference ASME B18.2.2-2022, Table 1.1.1-11
Thread Reference ASME B1.1-2024
Product Type Heavy Hex Nut
Width Across Flats 5-3/8 in
Width Across Flats Range 5.2–5.375 in
Width Across Corners Range 5.928–6.207 in
Nut Height 3-7/16 in
Nut Height Range 3.37–3.506 in
Material Carbon Steel
Property Class 2HM
Finish PTFE Coated
Market Status Standard
Estimated Weight 6436.836 g/pc
Thread
Thread Type 8UN
Thread Pitch 8 TPI
Dimensions
Diameter 3-1/2