MPN

Bossard Stainless Steel Lock Nut, UNI 7474, M4

RS Stock No.:: 283-6761
Distrelec Article No.:: 300-71-983
Mfr. Part No.:: BN 637 M4
Brand:: Bossard

Subtotal (1 pack of 100 units)*

£5.20

(exc. VAT)

£6.20

(inc. VAT)

FREE delivery for orders over £50.00

Last RS stock

Final 100 unit(s), ready to ship

Units	Per unit	Per Pack*
100 +	£0.052	£5.20

*price indicative

Alternative

This product is not currently available. Here is our alternative recommendation.

RS PRO Stainless Steel Lock Nut, DIN 985, M4

RS Stock No.: 521-923

1 Bag of 100

£10.09

(exc. VAT)

£12.11

(inc. VAT)

RS Stock No.:: 283-6761
Distrelec Article No.:: 300-71-983
Mfr. Part No.:: BN 637 M4
Brand:: Bossard

Find similar products by selecting one or more attributes.

Phoenix Contact Lock Nut, Hex Type, M4 Thread size - BN 637 M4

This lock nut belongs to the hex nut category, offering high-strength performance in various applications. Made from stainless steel A2, this nut complies with the UNI 7474 nut standards, ensuring durability and corrosion resistance. With a thread size of M4, it is ideal for secure fastening in mechanical assemblies.

Features & Benefits

• Provides reliable locking action with a polyamide insert
• Ensures compliance with UNI 7474 nut standards
• Manufactured from high-strength stainless steel for durability
• Designed as a thin type for space-saving applications
• Suitable for various industrial and electrical uses
• Facilitates secure fastening in panel mounting scenarios

Applications

• Used with electronic assemblies
• Ideal for mechanical components in automation equipment
• Employed in securing electrical connections
• Applicable in machinery requiring robust fastening solutions

What are the advantages of using polyamide inserts in this type of fastener?

The polyamide inserts create a prevailing torque, reducing the risk of loosening due to vibrations, making them highly reliable in dynamic environments.

How does the stainless steel composition benefit this lock nut?

The stainless steel construction provides excellent resistance to corrosion and wear, ensuring longevity even in harsh industrial conditions.

What torque specifications are recommended for optimal use with this lock nut?

Typically, a torque setting of around 2.9 Nm is suggested for M4 size to achieve the desired locking effect while preventing damage to the mating components.

Can the lock nut be used in outdoor applications?

Yes, the corrosion-resistant properties of stainless steel make it suitable for outdoor applications where exposure to moisture may occur.

What is the significance of meeting UNI 7474 standards for this fastener?

Compliance with UNI 7474 standards ensures that the fastener meets strict performance criteria, providing assurance of quality and reliability in applications across various industries.

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Select all	Attribute	Value
	Brand	Bossard
	Imperial or Metric	Metric
	Nut Type	Hex
	Thread Size	M4
	Material	Stainless Steel
	Type	Nut
	Standards Met	UNI 7474

	Select all
	Brand Bossard
	Imperial or Metric Metric
	Nut Type Hex
	Thread Size M4
	Material Stainless Steel
	Type Nut
	Standards Met UNI 7474