Grade 8.8 Bolt
Manufacturer of High Tensile Class 8.8 Nuts in India, Available with Various Sizes
Grade 8.8 Bolt is a high tensile fastener used in load and stressing applications. This material has good strength corrosion resistance and good wear and tear properties. The standard specification for these bolts is the ASTM A324. The High Tensile Grade 8.8 Bolts come in dimensions ranging from ¾ inches to 3 ½ inches in diameter. This is equivalent to the M20 to M100 in metric scale. The En 15048 Bolt can come in different types such as machine bolts, hex head bolts, socket head cap screws, dowel pins, allen bolts and others.There are also nuts and washers in this range.
The fasteners could be coated with different materials such as the 8.8 Galvanised Bolts. The coating provides extra corrosion resistance and wear tear resistance to the fasteners. One of the most used coating is the PTFE coating which avoids the fasteners to be in direct contact with corrosive agents in the environment. Hot dip galvanized, plain and zinc plated types are some of the other coating types.
The 8.8 Stainless Steel Bolts are used in structural applications such as construction, engineering, machines, automobile and in other high strength applications. The 8.8 High Tensile Bolts are preferred in applications where more permanent and robust connections are made. The price of these high tensile bolts are expensive than the ordinary fasteners but they have higher mechanical purposes to suit the need of the applications.
Table of Content
- Specifications of 8.8 Grade Bolt
- Types of 8.8 Lag Bolt
- Grade 8.8 Bolts Of Dimensions Chart
- Grade 8.8 Stud Bolts Standards Dimension
- Grade 8.8 Washers Dimensions
- High Tensile Grade 8.8 Hex Screw Of Dimension chart
- Grade 8.8 Threaded Rod Prices
- Grade 8.8 Metric Nuts Size Chart
- Weight Chart Of Grade 8.8 Fasteners
- Grade 8.8 Bolts Of Torque Values
- Equivalent material of 8.8 Metric Bolt
- 8.8 High Tensile Bolts Physical Properties
- Mechanical Properties Of ASTM A105 Flanges
- Chemical Composition of Grade 8.8 Bolt
- Difference Between Grade 8.8 and Other Grades
- Are Grade 8.8 Bolts Suitable for High-temperature Applications?
- What is the Hardness of Grade 8.8 Bolts?
- What Tools Are Required to Install Grade 8.8 Bolts?
High Tensile Grade 8.8 Bolts
Grade 8.8 Stud Bolts
Din 933 Grade 8.8 Threaded Rod
Get ASME SA324 8.8 Stainless Steel Bolts & M20 Grade 8.8 Studs With High Hardness, Check Specification
8.8 Grade Bolt Sizes
- Metric Size: 217 & 269 HB
- Imperial Sizes: 1/2" - 4.0"
- Length: 12.7 mm - 609.6 mm
Benefits
- Higher Yield Strength
- Improved Durability
- High Tensile Strength
Certification
- Marking and Traceability
- MTC as per EN 10204 / 3.1B
- Raw Materials Certificate
Threads Types
- UNF
- BSF, UNC
- BSW
- METRIC
Head Types
- Hex flange
- Hex, Square
- Round,Flat
- T-head & Triangular
Finishing
- Zinc , black oxide, BZP
- Geometry, Dacroment, Hot Dip Galvanised (HDG),
- Anodizing, plated zinc-nickel, nickel plated
Applications
- Marine and offshore industries
- Oil and Gas
- Electrical and Electronics
- Construction and Infrastructure
Packaging Methods
- Carton
- Corrugated Box
- Small Pack
- Pallet
Testing Methods
- Impact Testing
- Hardness Testing
- Corrosion Testing
- Tensile Testing
Neck type
- Hex, Square
- Oval
- Triangular
- Knurled
Production process
- Cold Forging
- Hot Forging
- Machining and CNC
- Customized
Surface Coating
- Black Oxide
- Teflon, Xylan, Zinc
- Cadmium, Galvanized
- Others Upon Request
Cutting Methods
- Angle Grinder
- Threaded Rod Cutter
- Hacksaw
Disadvantages
- Cost
- Requires Proper Installation
- Not Ideal for Soft Materials
Documentation
- Guarantee Letter
- Fumigation Certificates
- Raw Material Test Reports
Grade 8.8 Hex Head Bolt
8.8 grade J-Bolts
8.8 metric U-Bolts
8.8 high tensile Square Head Bolts
8.8 Galvanized Heavy Hex Bolt
M20 Grade 8.8 Shoulder Bolts
8.8 Cw Eye Bolts
8.8 Jh Flange Bolts
View Class 8.8 Studs & En 15048 Bolt Available in Multiple Dimension, Check Size Chart
| DIAMETER | m5 | m8 | m6 | m4 | m12 | m10 | m16 | m14 | m18 | m22 | m20 | m24 | m30 | m27 | m33 | m39 | m36 | m45 | m42 | m52 | m48 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Head Of Flat (S) Nom = max min Gr A Gr B | 8 | 13 | 10 | 7 | 18 | 16 | 24 | 21 | 27 | 34 | 30 | 36 | 46 | 41 | 50 | 60 | 55 | 70 | 65 | 80 | 75 | ||
| 7.78 | 12.74 | 9.78 | 6.78 | 17.73 | 15.73 | 23.67 | 20.67 | 26.67 | 33.38 | 29.67 | 35.38 | Grade A not applicable to these dia’s | |||||||||||
| 7.64 | 12.57 | 9.64 | 6.64 | 17.57 | 15.57 | 23.16 | 20.16 | 26.16 | 33 | 29.16 | 35 | 45 | 40 | 49 | 58.8 | 53.8 | 68.1 | 63.1 | 78.1 | 73.1 | |||
| Pitch | 0.8 | 1.25 | 1 | 0.7 | 1.75 | 1.5 | 2 | 2.5 | 3 | 3.5 | 4 | 4.5 | 5 | ||||||||||
| Major Dia Of Threads (Min) | 4.826 | 7.76 | 5.794 | 3.838 | 11.701 | 9.732 | 15.682 | 13.682 | 17.623 | 21.623 | 19.623 | 23.577 | 29.522 | 26.577 | 32.522 | 38.465 | 35.465 | 44.437 | 41.437 | 51.399 | 47.399 | ||
| Major Dia Of Threads (Max) | 4.976 | 7.972 | 5.974 | 3.978 | 11.966 | 9.968 | 15.962 | 13.962 | 17.958 | 21.958 | 19.958 | 23.952 | 29.947 | 26.952 | 32.947 | 38.94 | 35.94 | 44.937 | 41.937 | 51.929 | 47.929 | ||
| DIA | 1/2 | 9/16 | 7/16 | 7/8 | 3/4 | 5/16 | 1 | 1 3/4 | 1 1/8 | 5/8 | 1/4 | 1 1/4 | 3/8 | 1 3/8 | 1 1/2 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Head Of Flat (S) min max | 0.812 | 0.912 | 0.702 | 1.288 | 1.190 | 0.518 | 1.468 | 2.520 | 1.640 | 1.000 | 0.438 | 1.815 | 0.592 | 2.005 | 2.175 | 2.700 |
| 0.820 | 0.920 | 0.710 | 1.300 | 1.200 | 0.525 | 1.480 | 2.580 | 1.670 | 1.010 | 0.445 | 1.860 | 0.600 | 2.050 | 2.220 | 2.760 | |
| BSW Pitch (TPI) | 12 | 12 | 14 | 9 | 10 | 18 | 8 | 5 | 7 | 11 | 20 | 7 | 16 | 6 | 4.5 | |
| Major Dia Of Thread BSW (minimum) | 0.4904 | 0.5527 | 0.4285 | 0.8653 | 0.7390 | 0.3046 | 0.9897 | 1.7369 | 1.1140 | 0.6147 | 0.2427 | 1.2388 | 0.3666 | 1.4879 | 1.9862 | |
| Head Height (K) minimum maximum | 0.343 | 0.375 | 0.302 | 0.583 | 0.500 | 0.218 | 0.666 | 1.170 | 0.750 | 0.417 | 0.176 | 0.830 | 0.260 | 0.920 | 1.000 | 1.330 |
| 0.333 | 0.365 | 0.292 | 0.563 | 0.480 | 0.208 | 0.636 | 1.110 | 0.710 | 0.407 | 0.166 | 0.790 | 0.250 | 0.880 | 0.960 | 1.270 | |
| Major Diameters at Thread BSW (maximum) | 0.4985 | 0.5609 | 0.4360 | 0.8750 | 0.7482 | 0.3112 | 1.000 | 1.750 | 1.1250 | 0.6233 | 0.2488 | 1.250 | 0.3736 | 1.500 | 2.000 | |
| BSF PITCH (TPI) | 16 | 16 | 18 | 11 | 12 | 22 | 10 | 7 | 9 | 14 | 26 | 9 | 20 | 8 | 8 | 7 |
| Thread Length b Min | Twice the Dia (2D) | |||||||||||||||
| Across corners e maximum | 0.95 | 1.06 | 0.82 | 1.50 | 1.39 | 0.61 | 1.71 | 2.98 | 1.93 | 1.17 | 0.51 | 2.15 | 0.69 | 2.37 | 2.56 | 3.19 |
| Major Dia Of Thread BSF (minimum) | 0.4910 | 0.5533 | 0.4290 | 0.8658 | 0.7394 | 0.3051 | 0.9902 | 1.7380 | 1.1148 | 0.6153 | 0.2432 | 1.2395 | 0.3671 | 1.3640 | 1.4888 | 1.9876 |
| Major Dia Of Thread BSF (maximum) | 0.4985 | 0.5610 | 0.4361 | 0.8750 | 0.7482 | 0.3113 | 1.000 | 1.1250 | 0.6234 | 0.2489 | 1.250 | 0.3737 | 1.375 | 1.500 | ||
| DIAMETER | m22 | m16 | m24 | m20 | m30 | m27 | m36 |
|---|---|---|---|---|---|---|---|
| Inner Of Dia (min) d1 | 24 | 18 | 26 | 22 | 33 | 30 | 39 |
| Hardness for Hot Dip Galvd washer | 26 HRC | ||||||
| Thickness (S) | 3.1 TO 4.6 | ||||||
| Tolerance for ID Plus(+) | 0.43 | 0.52 | 0.62 | ||||
| Tolerance Of OD Minus(-) | 1.6 | 1.9 | |||||
| HARDNESS FOR PL. WASHER | 35 TO 45 HRC | ||||||
| Outer Of Dia (max) d2 | 44 | 34 | 50 | 42 | 60 | 56 | 72 |
| DIA | m5 | m8 | m6 | m4 | m12 | m10 | m16 | m20 | m18 | m24 | m22 | m27 | m33 | m30 | m36 | m42 | m39 | m48 | m45 | m52 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PINTCH | 0.8 | 1.25 | 1 | 0.7 | 1.75 | 1.5 | 2 | 2.5 | 2.5 | 3 | 2.5 | 3 | 3.5 | 3.5 | 4 | 4.5 | 4 | 5 | 4.5 | 5 |
| Gr A up to length | 50 | 80 | 60 | 40 | 120 | 100 | 150 | Grade A not applicable to these dia’s | ||||||||||||
| head Of Flat (S) maximum minimum(Gr A) Minimum (Gr B) | 7.64 | 12.57 | 9.64 | 6.64 | 17.57 | 15.57 | 23.16 | 29.16 | 26.16 | 35 | 33 | 40 | 49 | 45 | 53.8 | 63.1 | 58.8 | 73.1 | 68.1 | 78.1 |
| 7.78 | 12.73 | 9.78 | 6.78 | 17.73 | 15.73 | 23.67 | 29.67 | 26.67 | 35.38 | 33.38 | Grade A not applicable to these dia’s | |||||||||
| 8 | 13 | 10 | 7 | 18 | 16 | 24 | 30 | 27 | 36 | 34 | 41 | 50 | 46 | 55 | 65 | 60 | 75 | 70 | 80 | |
| Head Thick (K)
Tol + or – Gr B Gr A |
3.5 | 5.3 | 4 | 2.8 | 7.5 | 6.4 | 10 | 12.5 | 11.5 | 15 | 14 | 17 | 21 | 18.7 | 22.5 | 26 | 25 | 30 | 28 | 33 |
| 0.15 | 0.125 | 0.18 | 0.215 | Grade A not applicable to these dia’s | ||||||||||||||||
| 0.24 | 0.2 | 0.29 | 0.35 | 0.42 | 0.5 | |||||||||||||||
| Across corners e Min Gr A
Min Gr B |
8.79 | 14.38 | 11.05 | 7.66 | 20.03 | 17.77 | 26.75 | 33.53 | 30.14 | 39.98 | 37.72 | Grade A not applicable to these dia’s | ||||||||
| 8.63 | 14.2 | 10.89 | 7.5 | 19.85 | 17.59 | 26.17 | 32.95 | 29.56 | 39.55 | 37.29 | 45.2 | 55.37 | 50.85 | 60.79 | 71.3 | 66.44 | 82.6 | 76.95 | 88.25 | |
| Major Diamations Of Thread (Maximum) | 4.976 | 7.972 | 5.974 | 3.978 | 11.966 | 9.968 | 15.962 | 19.958 | 17.958 | 23.952 | 21.958 | 26.952 | 32.947 | 29.947 | 35.94 | 41.937 | 38.94 | 47.929 | 44.937 | 51.929 |
| Major Dia Of Thread (Minimum) | 4.826 | 7.76 | 5.794 | 3.838 | 11.701 | 9.732 | 15.682 | 19.623 | 17.623 | 23.577 | 21.623 | 26.577 | 32.522 | 29.522 | 35.465 | 41.437 | 38.465 | 47.399 | 44.437 | 51.399 |
| Grade 8.8 Fasteners Price List | Price Per Pcs. |
|---|---|
| Grade 8.8 Dowel Pins price | USD $1.20 |
| Grade 8.8 Machine bolts price | USD $5.10 |
| Grade 8.8 Allen bolts price | USD $4.25 |
| Grade 8.8 Screws price | USD $3.70 |
| Grade 8.8 Nuts price | USD $1.45 |
| High Tensile Grade 8.8 Socket Head Cap Screw price | USD $3.10 |
| Grade 8.8 Hex head bolts price | USD $6.05 |
| Grade 8.8 Washer price | USD $1.00 |
| Size Of Nut (millimeter) |
Diameter Of (millimeter) |
Height Table (millimeter) |
|||
|---|---|---|---|---|---|
| Nylock Nut | Hex Nut | Jam Nut | |||
| 18 | 27 | 18.5 | 15 | 9 | |
| 2.5 | 5 | - | 2 | 1.6 | |
| 5 | 8 | 5 | 4 | 2.7 | |
| 16 | 24 | 16 | 13 | 8 | |
| 6 | 10 | 6 | 5 | 3.2 | |
| 20 | 30 | 20 | 16 | 10 | |
| 7 | 11 | - | 5.5 | 3.5 | |
| 12 | 19 | 12 | 10 | 6 | |
| 8 | 13 | 8 | 6.5 | 4 | |
| 3 | 5.5 | 4 | 2.4 | 1.8 | |
| 10 | 17 | 10 | 8 | 5 | |
| 4 | 7 | 5 | 3.2 | 2.2 | |
| 14 | 22 | 14 | 11 | 7 | |
| 2 | 4 | - | 1.6 | 1.2 | |
| Weight Chart Of Machine Screws ( Type 1, 23,) F Or G Tapping Screws LBS. Per 1000 pieces |
|||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Diameters Row |
|||||||||||
| Lengths Row | #2 | #3 | #4 | #5 | #6 | #8 | #10 | #12 | 1/4″ | 5/16″ | 3/8″ |
| 1-1/8″ | 1.50 | 2.00 | 2.80 | 3.8 | 4.3 | 6.7 | 9.6 | 11.9 | 17.4 | 30.2 | 47.0 |
| 9/16 | 0.90 | 1.20 | 1.70 | 2.2 | 2.6 | 4.2 | 6.2 | 7.8 | 11.7 | 20.9 | 33.6 |
| 5/8 | 1.00 | 1.30 | 1.80 | 2.3 | 2.8 | 4.5 | 6.6 | 8.3 | 12.4 | 21.9 | 35.1 |
| 3/4 | 1.10 | 1.50 | 2.10 | 2.6 | 3.2 | 5.0 | 7.3 | 9.2 | 13.6 | 24.0 | 38.0 |
| 3/8 | 0.70 | 0.90 | 1.30 | 1.7 | 2.1 | 3.4 | 5.0 | 6.5 | 9.8 | 17.7 | 29.2 |
| 7/16 | 0.80 | 1.00 | 1.50 | 1.9 | 2.2 | 3.6 | 5.4 | 6.9 | 10.4 | 18.8 | 30.7 |
| 2-1/2″ | 2.80 | 3.90 | 5.50 | 7.3 | 8.3 | 12.9 | 18.1 | 22.0 | 31.3 | 53.2 | 79.5 |
| 2-1/4″ | 2.60 | 3.60 | 5.00 | 6.7 | 7.6 | 11.8 | 16.6 | 20.1 | 28.8 | 19.0 | 73.5 |
| 3/16 | 0.50 | 0.70 | 0.90 | 1.2 | 1.5 | 2.5 | 3.9 | — | — | — | — |
| 2-3/4″ | 3.10 | 4.30 | 6.00 | 7.9 | 9.1 | 13.9 | 19.7 | 23.8 | 33.9 | 57.3 | 85.3 |
| 1/2 | 0.80 | 1.10 | 1.60 | 2.0 | 2.4 | 3.9 | 5.8 | 7.4 | 11.1 | 19.8 | 32.2 |
| 7/8 | 1.30 | 1.70 | 2.30 | 3.0 | 3.5 | 5.6 | 8.1 | 10.1 | 14.9 | 26.1 | 41.0 |
| 1″ | 1.40 | 1.90 | 2.50 | 3.4 | 3.9 | 6.2 | 8.9 | 11.0 | 16.1 | 28.8 | 44.0 |
| 1-3/4″ | 2.10 | 2.90 | 4.00 | 5.3 | 6.1 | 9.4 | 13.5 | 16.5 | 23.7 | 40.7 | 61.7 |
| 1/8 | 0.40 | 0.55 | 0.70 | 1.1 | 1.4 | — | — | — | — | — | — |
| 2″ | 2.40 | 3.30 | 4.50 | 6.0 | 6.8 | 10.6 | 15.0 | 18.3 | 26.2 | 44.8 | 67.6 |
| 1/4 | 0.60 | 0.80 | 1.00 | 1.4 | 1.7 | 2.8 | 4.3 | 5.6 | 8.5 | — | — |
| 1-1/4″ | 1.60 | 2.20 | 3.00 | 4.1 | 4.6 | 7.3 | 10.4 | 12.8 | 18.7 | 32.3 | 49.8 |
| 1-1/2″ | 1.80 | 2.50 | 3.50 | 4.7 | 5.3 | 8.3 | 11.9 | 14.7 | 21.2 | 36.5 | 55.8 |
| 5/16 | 0.60 | 0.90 | 1.20 | 1.5 | 1.9 | 3.1 | 4.6 | 6.1 | 9.1 | 16.7 | — |
| 3″ | 3.40 | 4.70 | 6.50 | 8.6 | 9.8 | 15.0 | 21.2 | 25.6 | 36.4 | 61.5 | 91.3 |
| Max Recommended Tightening Torque | ||||||||
|---|---|---|---|---|---|---|---|---|
| Metric Course Pitch | Gr 12.9 Plated | Metric Course Pitch | Grade 10.9 Plated | Metric Course Pitch | Gr 8.8 Plated | |||
| Nm | ft-lb | Nm | ft-lb | Nm | ft-lb | |||
| (M39) | 4471 | 3298 | (M39) | 3726 | 2748 | (M39) | 2649 | 1954 |
| M42 | 5525 | 4075 | M42 | 4604 | 3396 | M42 | 3274 | 2415 |
| (M27) | 1456 | 1074 | (M27) | 1213 | 895 | (M27) | 863 | 636 |
| M30 | 1977 | 1458 | M30 | 1647 | 1215 | M30 | 1171 | 864 |
| (M33) | 2690 | 1984 | (M33) | 2242 | 1653 | (M33) | 1594 | 1176 |
| (M45) | 6871 | 5068 | (M45) | 5726 | 4223 | (M45) | 4072 | 3003 |
| M10 | 68 | 50 | M10 | 57 | 42 | M10 | 40 | 30 |
| M12 | 119 | 88 | M12 | 99 | 73 | M12 | 70 | 52 |
| M48 | 8287 | 6113 | M48 | 6906 | 5094 | M48 | 4911 | 3622 |
| M20 | 576 | 424 | M20 | 480 | 354 | M20 | 341 | 252 |
| (M22) | 783 | 577 | (M22) | 652 | 481 | (M22) | 464 | 342 |
| M24 | 995 | 734 | M24 | 829 | 612 | M24 | 590 | 435 |
| M52 | 10749 | 7928 | M52 | 8958 | 6607 | M52 | 6370 | 4698 |
| (M14) | 189 | 139 | (M14) | 158 | 116 | (M14) | 112 | 83 |
| M16 | 295 | 218 | M16 | 246 | 181 | M16 | 175 | 129 |
| (M18) | 406 | 299 | (M18) | 338 | 249 | (M18) | 241 | 177 |
| M36 | 3454 | 2548 | M36 | 2879 | 2123 | M36 | 2047 | 1510 |
| M6 | 14 | 10 | M6 | 12 | 9 | M6 | 8 | 6 |
| M8 | 34 | 25 | M8 | 29 | 21 | M8 | 20 | 15 |
Shear Strength of a BS 3692 Grade 8.8 Bolts & Din 933 Grade 8.8 Eye Bolt is Typically Around 60%, Check Properties
Grade 8.8 Bolt Manufacturer in India offers fasteners with equivalent standards.
BS
3692
SUS
515 MPa
WERKSTOFF NR.
1.1191
EN
EN 20898-1
UNS
UNS S30400
AFNOR
Z7CN18‐09
| Property | Value |
|---|---|
| Thermal Expansion | ~11 to 13 x 10-6 /°C (varies with alloy) |
| Melting Point | ~1,400 - 1,500°C |
| Tensile Strength | 800 - 1,000 - MPa (Megapascals) |
| Density | ~7.85 g/cm³ |
| Modulus of Elasticity | ~200 GPa (Gigapascals) |
| Poisson's Ratio | ~0.3 |
| Yield Strength | 640 MPa |
| Elongation | 12% (for bolts with diameter 20 mm) |
| Hardness (Rockwell) | HRB 85 to HRC 25 (depending on the heat treatment) |
Get High Tensile Grade 8.8 Hex Bolt & Grade 8.8 Threaded Rod With Higher Yield and Tensile Strength, Check Mechanical Property.
Grade 8.8 Bolt Manufacturer in India provides fasteners with excellent mechanical properties.
Tensile Strength
800 MPa
Yield Strength
640 MPa
Modulus Elasticity
200 GPa
Elongation
12%
0.25%-0.55%
Carbon
0.60% - 1.20%
Mn
Balance
Fe
0.15% - 0.35%
Si
0.25%
Cr
0.25%
Ni
0.035%
S
| Grade | Material | Tensile Strength | Yield Strength |
|---|---|---|---|
| 4.6 | Low carbon steel | 400 MPa | 240 MPa |
| 5.6 | Medium carbon steel | 500 MPa | 300 MPa |
| 8.8 | Medium carbon steel (Q&T) | 800 MPa | 640 MPa |
| 10.9 | High carbon/alloy steel | 1000 MPa | 900 MPa |
| 12.9 | High-grade alloy steel | 1200 MPa | 1080 MPa |
- ➤ Suitable up to 300°C.
- ➤ Strength decreases above 300°C.
- ➤ Limited corrosion resistance.
- ➤ Use SS 316 or ASTM A193 B7 for higher temps.
Grade 8.8 Bolt Supplier in India offers the fasteners with high strength
Regal Sales Corporation can supply H1 product in Philippines, Morocco, Brazil, Belgium, Germany, Netherlands, Peru with in 2 weeks
| Hardness Scale | Range |
|---|---|
| Vickers (HV) | 240–320 HV |
| Brinell (HB) | 223–308 HB |
| Rockwell (HRC) | 22–34 HRC |
| Tool |
|---|
| Torque Wrench |
| Impact Wrench (Optional) |
| Locking Pliers/Vice Grips |
| Bolt Cutter (Optional) |
| Dead Blow Hammer |
| Torque Multipliers (Optional) |
| Lubricants/Anti-seize |
| Nut Drivers (Optional) |
| Thread Cleaners/Taps (Optional) |