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Brand Name : PM
Model Number : M6-M64, 1/4"-4"
Certification : ISO
Place of Origin : CHINA
MOQ : 100PCS
Price : USD 0.001-3 PER PCS
Payment Terms : L/C, T/T
Supply Ability : 1000 Tons per Month
Delivery Time : 15-25DAYS PER CONTAINER
Packaging Details : 25kgs/carton and 36 cartons on standard export wooden pallets
Material : C1035
Grade : A325M
Size : 1.1/4"
Length : 100mm
Surface : Black , Black Oxide
Thread : UNF
Mark : Manufacturer's ID and A325M
Product name : A325M assembly 2HM hex nut half thread UNF heavy hex bolts
A325M assembly 2HM hex nut half thread UNF heavy hex bolts
There are several ASTM bolting specifications that require a heavy hex head – larger than a standard or finished hex head. These specifications include: A193, A320 and A307B. Although A325 and A490 bolts also require a heavy hex head, they refer to Structural Bolts for dimensional specifications, since structural bolts have shorter thread lengths than standard heavy hex bolts.
                                                        
SIZE: 1/4" - 1.1//2", M6 -M36. And 600mm Max length.
STANDARD: ASME B18.2.6
THREAD: ASME B1.1 , UNC, UNF, CLASS 2A
FINISHED: Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Dacromet, H.D.G.
| A325 Types | |
| TYPE 1 | Medium carbon, carbon boron, or medium carbon alloy steel. | 
| TYPE 2 | Withdrawn November 1991. | 
| TYPE 3 | Weathering steel. | 
| T | Fully threaded A325. (Restricted to 4 times the diameter in length) | 
| M | Metric A325. | 
| A325 Mechanical Properties | ||||
| Size | Tensile, ksi | Yield, ksi | Elong. %, min | RA %, min | 
| 1/2-1" | 120 min | 92 min | 14 | 35 | 
| 1.1/8"-1.1/2" | 105 min | 81 min | 14 | 35 | 

| A325 Type 1 Chemical Properties | ||
| Heat Analysis | 120ksi, % | 150ksi, % | 
| Carbon | 0.30 – 0.52 | 0.30 – 0.48* | 
| Manganese | 0.60 min | 0.60 min | 
| Phosphorus | 0.035 max | 0.035 max | 
| Sulfur | 0.040 max | 0.040 max | 
| Silicon | 0.15 – 0.30 | - | 
| Boron | 0.003 max | 0.003 max | 
| Copper | - | - | 
| Nickel | - | - | 
| Chromium | - | - | 
| Molybdenum | - | - | 
| A325 Type 3 Chemical Properties | ||||
| Heat Analysis | 120ksi, % Comp A | 120ksi, % Comp B | 120ksi, % Index | 150ksi, % Index | 
| Carbon | 0.33 – 0.40 | 0.38 – 0.48 | 0.30 – 0.52 | 0.30 – 0.53 | 
| Manganese | 0.90 – 1.20 | 0.70 – 0.90 | 0.60 min | 0.60 min | 
| Phosphorus | 0.035 max | 0.035 max | 0.035 max | 0.035 max | 
| Sulfur | 0.040 max | 0.040 max | 0.040 max | 0.040 max | 
| Silicon | 0.15 – 0.30 | 0.30 – 0.50 | ||
| Copper | 0.25 – 0.45 | 0.20 – 0.40 | 0.20 – 0.60 | 0.20 – 0.60 | 
| Nickel | 0.25 – 0.45 | 0.50 – 0.80 | 0.20 min | 0.20 min | 
| Chromium | 0.45 – 0.65 | 0.50 – 0.80 | 0.20 min | 0.20 min | 
| Molybdenum | 0.06 max | 0.10 min | 0.10 min | |
| A325 RECOMMENDED HARDWARE | |||
| Type | Finish | Nut | Washer | 
| Type 1 | plain | A563 Grade C, C3, D, DH, DH3 | F436 Type 1 | 
| galvanized | A563 Grade DH | F436 Type 1 | |
| Type 3 | plain | A563 Grade C3, DH3 | F436 Type 3 | 
|   | 
| A325M Assembly 2HM Hex Nut UNF Galvanized Hex Head Screws Half Thread Images | 
 High Strength Heavy Structural Heavy Hex Bolts ASTM A490 Type 3
                                                                                    
                        
                        
                        
                                                            High Strength Heavy Structural Heavy Hex Bolts ASTM A490 Type 3
                                                    
                        
                     40Cr F2280 A490TC Hot Forged High Strength Heavy Hex Bolt Hot Dip Galvanized
                                                                                    
                        
                        
                        
                                                            40Cr F2280 A490TC Hot Forged High Strength Heavy Hex Bolt Hot Dip Galvanized
                                                    
                        
                     A307 GRADE B Hot Dipped Galvanized Hex Bolts Full Thread
                                                                                    
                        
                        
                        
                                                            A307 GRADE B Hot Dipped Galvanized Hex Bolts Full Thread
                                                    
                        
                     Black UNC Heavy Full Thread Hex Bolts ASTM A193 Grade B7
                                                                                    
                        
                        
                        
                                                            Black UNC Heavy Full Thread Hex Bolts ASTM A193 Grade B7
                                                    
                        
                     ASTM A194 2H Heavy Hex Bolts ASTM A193 Grade B7
                                                                                    
                        
                        
                        
                                                            ASTM A194 2H Heavy Hex Bolts ASTM A193 Grade B7
                                                    
                        
                     1/2" 316 Stainless Steel Hex Bolts ASTM A193 Grade B8M Class 2
                                                                                    
                        
                        
                        
                                                            1/2" 316 Stainless Steel Hex Bolts ASTM A193 Grade B8M Class 2
                                                    
                        
                     Stainless Steel 321 Half Thread Heavy Hex Bolts ASTM A193 Grade B8T
                                                                                    
                        
                        
                        
                                                            Stainless Steel 321 Half Thread Heavy Hex Bolts ASTM A193 Grade B8T
                                                    
                        
                     ASTM A325 Black Oxide Hex Head Bolts
                                                                                    
                        
                        
                        
                                                            ASTM A325 Black Oxide Hex Head Bolts
                                                    
                        
                     Hot Dip Galvanized High Tensile Hex Bolt
                                                                                    
                        
                        
                        
                                                            Hot Dip Galvanized High Tensile Hex Bolt
                                                    
                        
                     ASTM A563 Heavy Hex Structural Bolts
                                                                                    
                        
                        
                        
                                                            ASTM A563 Heavy Hex Structural Bolts