M6 Carbon Steel Connector Bolts 50mm W/ 6mm Barrel Nuts Connector Fastener Furniture Bolt

• Style：Modern
• Material：Carbon Steel
• Color：Yellow
• Customized：Customized
• Condition：New
• Transport Package：Carbon and Pallet

=== Base Info ===

• Model NO.：QBH
• Specification：M6X50
• Trademark：QBH
• Origin：China
• HS Code：7318159001
• Production Capacity：200 Tons,Month

=== Description ===
NO.Mechanical or
physical propertyProperty class4.64.85.65.86.88.89.810.912.9/12.9D≤16mm1Tensile strength
R40050060080090010001200max.400420500520600800830900104012202Lower yield strength
R3Stress at 0,2 % nonproportional elongation
R4Stress at 0,0048 d non-proportional elongation for
full-size fasteners
R5Stress under proof load
SProof S--524848448Elongation after fracture for full-size
fasteners,AHead soundnessNo fracture10Vickers hardness, HV,
F≥98Nmin.120130155160190250255290320385max.22011Brinell hardness, HBW
,F=30D²min.114124147152181238242276304366max.20912Rockwell hardness,HRB ,
HRBmin.6771798289 max.95 Rockwell hardness,
HRCmin.--2223283239max.--323437394413Surface hardness
HV 0.3max.--hh,jh,j14Height of non-decarburized thread zone,E,mmmin.--1/2H--0.01515Reduction of hardness after retempering,HVmax.--2016Breaking torque,
M--in accordance with ISO 898-717Impact strength,
K--27--27272727m18Surface integrity in accordance withISO 6157-1a Values do not apply for structural bolting.
b For structural bolting d W M12.
c Nominal values are specified only for the purpose of the designation system for property classes.See Clause 5.
d In cases where the lower yield strength ReL cannot be determined, it is permissible to measure the stress at 0,2 % non-proportional elongation Rp0,2.
e For the property classes 4.8, 5.8 and 6.8 the values for Rpf min are under investigation. The present values are given for calculation of the proof stress ratio only. They are not test values.
f Proof loads are specified in Tables 5 and 7.
g Hardness determined at the end of a fastener shall be 250 HV, 238 HB or 99,5 HRB maximum.
h Surface hardness shall not be more than 30 Vickers points above the measured core hardness of the fastener when determination of both surface hardness and core hardness are carried out with HV 0,3.
i Any increase in hardness at the surface which indicates that the surface hardness exceeds 390 HV is not acceptable.
j Any increase in hardness at the surface which indicates that the surface hardness exceeds 435 HV is not acceptable.
k Values are determined at a test temperature of −20 °C, see 9.14.
l Applies to d W 16 mm. m Value for KV is under investigation.
n Instead of ISO 6157-1, ISO 6157-3 may apply by agreement between the manufacturer and the purchaser.

CHEMICAL COMPOSI %CSiMnPSCrNiCuAl0.060.060.330.0130.0030.0100.010.028

CHEMICAL COMPOSI %CSiMnPSCrNiCu0.340.130.730.0120.0020.020.010.02

CHEMICAL COMPOSI %CSiMnPSCrB0.20.040.810.0170.0070.0170.0021

CHEMICAL COMPOSI %CSiMnPSCrNiCu0.450.230.580.0140.0060.0570.0080.016

CHEMICAL COMPOSI %CSiMnPSCrNiCu0.40.210.540.0150.0080.950.020.02

CHEMICAL COMPOSI %CSiMnPSCrNiCuMo0.350.220.590.010.0030.930.010.010.21

CHEMICAL COMPOSI %CSiMnPSCrNiCuMo0.420.270.920.0130.0041.010.030.040.2

Finish

PLAIN ZP YZP BLACK HDG DACROMET GEOMET CHROME NICKEL AND SO ON

PACKING

QBH BULK

20-25KG/CTN,36CTNS/PALLET

20-30KG/BAGS,36BAGS/PALLET

ONE TON/BOXES

50KG/ IRON DRUM,12 IRON DRUMS/PALLET

QBH SMALL PACKING

Packing in small boxes according to customer's requirements

Packing in plastic bag according to customer's requirements

QBH PALLET TYPE

SOLID WOOD FUMIGATION PALLET

EURO Pallet

THREE SPLINT PALLET

WOODEN BOX

The advantages of QBH

• QBH brand sales to the main quality assurance.
• Years of export trade management, excellent service, word-of-mouth guarantee.
• By working with TUV,escort for quality.
• Customization of non-standard parts can be made according to customer's requirements and drawings.
• For quality customers,we can provide a certain credit period.