6 Best Crib Replacement Hardware Kits (November 2026)
The best crib replacement hardware kits include the XOOL 110 PCS M6×80/65/55/45/35 mm Hex Socket for Delta crib bolt sizes, the Glarks 141Pcs Baby Bed Crib Screws Hardware for shorter and longer M6 options, and the Lhazemu 100pcs Baby Bed Crib Screws Hardware for 40 to 80 mm bolts.
On this page (6 sections)
- Which crib hardware replacement kit is the best match?
- What should you check before buying crib replacement hardware?
- Why does exact model compatibility matter?
- When should you contact the crib manufacturer?
- Can a hardware kit replace a mattress support spring?
- Which crib replacement hardware kit should you choose?
The best crib replacement hardware kit is the one that matches your crib’s exact manufacturer specifications and model. These assorted kits offer several M6 screw lengths, but a matching thread alone does not prove that a bolt, barrel nut or joint is right for your crib.
We compared the stated sizes and included parts to help narrow the options. Before you buy, find the crib model and original part number, then confirm the screw length, thread, head and nut style with the manufacturer’s guidance.
Our picks at a glance
-
1
Best for Delta crib bolt sizesXOOL 110 PCS M6×80/65/55/45/35 mm Hex Socket
9.7/10 our score
See it on Amazon -
2
Best for shorter and longer M6 optionsGlarks 141Pcs Baby Bed Crib Screws Hardware
9.6/10 our score
See it on Amazon -
3
Best for 40 to 80 mm boltsLhazemu 100pcs Baby Bed Crib Screws Hardware
9.5/10 our score
See it on Amazon
- 4
Check itLhazemu 85Pcs Crib Screws Baby Bed Crib
Best for a wide length range - 5
Check itGlarks 141Pcs Baby Bed Crib Screws Hardware
Best for 20 to 80 mm M6 bolts - 6
Check itGDFYMI Crib Screws Replacement Set
Best for 15 to 75 mm hardware
Which crib hardware replacement kit is the best match?
The best match depends on the original fastener dimensions, not the number of pieces in a kit. XOOL is the highest-scoring pick here and covers five M6 lengths, while other sets add shorter or more frequent size steps.
Our score weighs the listed sizes, included parts and fit with the needs of someone replacing crib hardware. It does not confirm that any kit fits a particular crib.
Use manufacturer specifications to make that decision.
| Product | Best for | Thread | Screw lengths | Included | Our score |
|---|---|---|---|---|---|
| XOOL 110 PCS M6×80/65/55/45/35 mm Hex Socket | Delta crib bolt sizes | M6 | 35, 45, 55, 65 and 80 mm | Hex wrench and nuts | 9.7 |
| Glarks 141Pcs Baby Bed Crib Screws Hardware | shorter and longer M6 options | M6 x 1 | 15 to 75 mm in 10 mm steps | Barrel nuts and Allen wrench | 9.6 |
| Lhazemu 100pcs Baby Bed Crib Screws Hardware | 40 to 80 mm bolts | M6 | 50 barrel nuts and wrench | 9.5 | |
| Lhazemu 85Pcs Crib Screws Baby Bed Crib | a wide length range | M6 | 20 to 80 mm in 10 mm steps | Barrel nuts and wrenches | 9.4 |
| Glarks 141Pcs Baby Bed Crib Screws Hardware | 20 to 80 mm M6 bolts | M6 | 20 to 80 mm in 10 mm steps | Barrel nuts and Allen wrench | 9.2 |
| GDFYMI Crib Screws Replacement Set | 15 to 75 mm hardware | M6 | Barrel nuts and hex key | 8.6 |
XOOL 110 PCS M6×80/65/55/45/35 mm Hex Socket: Best for Delta crib bolt sizes
- M6 screws in 35, 45, 55, 65 and 80 mm lengths
- 110 pieces
- Includes hex wrench and nuts
- Plastic storage box
Five M6 lengths give you options when the original screw length matches one of the sizes. XOOL says the kit is particularly suitable for Delta brand cots, but you still need to confirm the exact crib model and hardware.
Pros
- Five listed screw lengths
- Includes hex wrench and nuts
- Plastic storage box
Cons
- Does not cover every possible crib fastener size
- Exact model compatibility needs confirmation
XOOL’s kit includes M6 screws in 35, 45, 55, 65 and 80 mm lengths, plus nuts and a hex wrench. A plastic box keeps the pieces together.
The brand says the assortment is particularly suitable for Delta brand cots and also describes other furniture uses.
That brand statement is not a model-by-model compatibility list. Check the crib’s label and manual for its model and part number, then ask the manufacturer whether the screw and nut dimensions match.
The 80 mm option is longer than the other sizes in the set, but it should only be used where the crib calls for that length.
The kit may suit you if you’ve confirmed that your crib needs one of these five screw lengths and the included connection parts. If you need a size below 35 mm or between the listed steps, this assortment may not cover it.
Glarks 141Pcs Baby Bed Crib Screws Hardware: Best for shorter and longer M6 options
- M6 screws in 15, 25, 35, 45, 55, 65 and 75 mm lengths
- 70 M6 x 12 mm barrel nuts
- Includes Allen wrench
- Plastic storage box
This Glarks set covers shorter M6 screw lengths, including 15 mm, and reaches 75 mm. Its 70 barrel nuts and Allen wrench make it a broad assortment, provided the crib calls for these dimensions.
Pros
- Seven screw lengths
- Includes barrel nuts and wrench
- Separate sizes in a storage box
Cons
- Longest screw is 75 mm
- Black finish may differ from the original hardware
Glarks includes seven M6 screw lengths from 15 to 75 mm, with a 10 mm step between each size. The set also includes 70 M6 x 12 mm barrel nuts, an Allen wrench and a box that separates the parts.
That range can be useful when the crib’s confirmed fastener is shorter than 35 mm. It does not guarantee a fit: the crib may use another thread, nut length or attachment design.
Glarks describes the kit for different furniture, including cribs, but your own crib’s manual or manufacturer remains the source for compatibility.
Check the original screw’s length from under the head to its tip, along with its thread and head style. Also confirm that the barrel nut dimensions and orientation match the crib’s joint.
A replacement should follow the crib maker’s specified parts and assembly steps.
Lhazemu 100pcs Baby Bed Crib Screws Hardware: Best for 40 to 80 mm bolts
- M6 bolts in 40, 50, 60, 70 and 80 mm lengths
- 50 barrel nuts
- Includes M4 wrench
- Clear plastic storage box
The five bolt lengths run from 40 to 80 mm, and the set includes matching M6 barrel nuts and an M4 wrench. Lhazemu describes it as compatible with most cribs, but that broad wording cannot confirm fit for a particular model.
Pros
- Five lengths through 80 mm
- Includes barrel nuts and wrench
- Storage box included
Cons
- Does not include lengths below 40 mm
- Confirm nut dimensions and crib model
Lhazemu’s 100-piece set covers M6 bolt lengths from 40 to 80 mm in 10 mm steps. It includes 50 M6 barrel nuts, an M4 wrench and a clear storage box.
This set may fit a repair where the manufacturer specifies one of those five longer sizes. Lhazemu describes it as compatible with most cribs, but “most” cannot identify a fit for your crib model.
Confirm the exact screw and nut dimensions before using the kit.
The range begins at 40 mm, so it won’t suit a crib that calls for a shorter screw. Compare the full joint, not just the bolt: the nut’s length and slot orientation can affect whether the fastener connects as designed.
Lhazemu 85Pcs Crib Screws Baby Bed Crib: Best for a wide length range
- M6 screws in 20, 30, 40, 50, 60, 70 and 80 mm lengths
- Includes barrel nuts and wrenches
- Steel with zinc finish
Seven stated M6 lengths span 20 to 80 mm, giving this set the broadest stated range among these picks. Check the exact nut and screw dimensions against the crib’s specified hardware before using it.
Pros
- Seven screw lengths
- Includes barrel nuts and wrenches
- Zinc finish
Cons
- Compatibility wording is general
- Exact quantities by screw length are not specified here
This Lhazemu kit lists seven M6 screw lengths from 20 to 80 mm: 20, 30, 40, 50, 60, 70 and 80 mm. It also includes barrel nuts and wrenches, with a zinc finish on the steel hardware.
The size range gives you more intervals to compare with a crib’s specified bolt length than a kit with only five options. The product information describes the kit for cribs, bunk beds, headboards and other furniture, but broad use does not replace a model check.
The stated information does not break down how many screws come in each size. If you need multiple matching fasteners, confirm the quantities and exact parts before ordering.
Do not mix hardware based only on appearance or an approximate length.
Glarks 141Pcs Baby Bed Crib Screws Hardware: Best for 20 to 80 mm M6 bolts
- M6 screws in 20, 30, 40, 50, 60, 70 and 80 mm lengths
- 70 M6 x 12 mm barrel nuts
- Includes Allen wrench
- Plastic storage box
This Glarks assortment covers seven M6 lengths from 20 to 80 mm and includes barrel nuts and an Allen wrench. It suits a crib only when those sizes and the connection style match the manufacturer’s specifications.
Pros
- Seven screw lengths
- Includes barrel nuts and wrench
- Sizes packed separately in a box
Cons
- Black finish may not match existing hardware
- M6 size alone does not confirm fit
This Glarks kit also has seven M6 lengths from 20 to 80 mm, but it is a separate assortment from the Glarks set above. It includes 70 M6 x 12 mm barrel nuts, an Allen wrench and a storage box.
Its 20 mm starting length may be useful when the manufacturer specifies a shorter bolt than the first Glarks option above. The package details describe the sizes as packed separately, which helps keep lengths organized during a repair.
Before choosing between the two Glarks kits, compare the crib’s required length against each range. One spans 15 to 75 mm, while this one spans 20 to 80 mm.
Neither range settles whether the threads, nuts and crib connection match.
GDFYMI Crib Screws Replacement Set: Best for 15 to 75 mm hardware
- M6 bolts in 15, 25, 35, 45, 55, 65 and 75 mm lengths
- Includes barrel nuts and hex key
- 70-piece bolt set
The stated M6 lengths start at 15 mm and rise to 75 mm, which may help when a shorter fastener is required. GDFYMI describes the kit as universal, but the crib model and original fastener dimensions still determine whether it fits.
Pros
- Seven listed bolt lengths
- Includes barrel nuts and hex key
- Storage box is mentioned in the package details
Cons
- Package notes say some sets may not include a box
- Exact model compatibility needs checking
GDFYMI’s set lists M6 bolt lengths from 15 to 75 mm in seven 10 mm steps. It includes barrel nuts and a hex key, and the package details describe 70 bolts.
The maker describes this as a universal crib hardware kit and lists uses for furniture such as cribs, tables and cabinets. Treat that as a general furniture description, not confirmation for your crib.
Check the model’s exact requirements first.
There is a storage detail to verify: the package information mentions a clear box, but also notes that two products do not come with storage boxes. Confirm what is included before you rely on the box to keep small parts together.
What should you check before buying crib replacement hardware?
Check the crib’s model and manufacturer part information first. Then compare the replacement’s full dimensions and connection style with the hardware specified for that exact crib.
Start with the model label, often found on the crib or in its paperwork. Look for the manufacturer, model name or number, and any part number for the hardware.
If those details are unavailable, contact the manufacturer with the crib’s identifying information.
Measure an original screw if you have one, but don’t use it as the only source of compatibility. Record its length, thread diameter and head style, and check the barrel nut’s size and slot.
A hardware set can have the same M6 thread and still use a different length or connection.
For a broader checklist, see how to choose baby crib hardware replacement parts. That guide can help you identify what to compare before ordering.
Why does exact model compatibility matter?
Exact compatibility matters because a crib joint is designed around specific parts and assembly instructions. A bolt that looks similar or begins to thread into a hole may still be the wrong part.
Don’t force a screw that binds, sits proud, spins without tightening or fails to reach the barrel nut correctly. Stop and check the manufacturer’s instructions rather than substituting a different length or nut.
Follow the crib maker’s assembly and use guidance.
The same care applies to parts that hold the mattress platform. For crib options with this feature, see cribs with adjustable mattress height.
A replacement support is a different component from a bag of screws, so identify it by crib model and part number.
Our guide to crib mattress support replacement covers that separate repair.
Brand-specific research can help if you’ve identified your crib. For example, see the guides to Babyletto Hudson crib hardware and Dream On Me crib hardware for model-focused replacement checks.
When should you contact the crib manufacturer?
Contact the manufacturer when you can’t verify the correct part number or dimensions, or when the crib’s instructions don’t identify a safe replacement. Share the model information and, if requested, a clear photo of the joint and original hardware.
A manufacturer may be able to point you to the correct replacement part or assembly instructions. Avoid assuming that a general-purpose furniture kit is approved for a crib just because it contains an M6 bolt or is described for crib use.
If you’re researching other brand-specific hardware, these guides cover Simmons baby crib replacement parts and Graco crib replacement screws. Use the crib’s own model details when checking either brand’s options.
Can a hardware kit replace a mattress support spring?
A screw assortment does not mean it contains a mattress support spring. These kits describe screws or bolts, barrel nuts and tools, so confirm support parts separately.
The crib may use a particular spring, frame or platform assembly that has its own model-specific part number. See our guide to a baby crib mattress support spring if that is the missing or damaged component.
Which crib replacement hardware kit should you choose?
Choose XOOL if your crib maker confirms a match among its five M6 lengths and included hardware. Choose one of the wider-range assortments only when its listed bolt and nut dimensions match your crib’s model specifications.
For the widest listed length range here, compare the 20 to 80 mm options from Lhazemu and Glarks. For a shorter 15 mm option, compare the Glarks or GDFYMI sets that list it.
In every case, verify compatibility with the crib manufacturer before installing replacement parts.
Our top 3 picks at a glance
-
1
Best for Delta crib bolt sizes
XOOL 110 PCS M6×80/65/55/45/35 mm Hex Socket
9.7/10 our score
See it on Amazon -
2
Best for shorter and longer M6 options
Glarks 141Pcs Baby Bed Crib Screws Hardware
9.6/10 our score
See it on Amazon -
3
Best for 40 to 80 mm bolts
Lhazemu 100pcs Baby Bed Crib Screws Hardware
9.5/10 our score
See it on Amazon
Frequently asked questions
How do I choose a crib replacement hardware kit?
Choose by the crib maker’s part number or the exact fastener dimensions, including thread, length, head and nut style. Compare those details with every item in the kit before using it.
If the manual or model information is missing, ask the crib manufacturer to identify the correct replacement.
Are M6 crib screws interchangeable between brands?
No. M6 describes a thread size, but it does not confirm the screw length, head shape, barrel nut, joint design or compatibility with a specific crib.
Use the crib maker’s instructions for the model and part, and don’t treat a general furniture claim as proof of fit.
Can I use a replacement kit if one screw is missing?
Use a replacement only after confirming it matches the crib’s specified hardware. A screw that threads into a hole may still have the wrong length or connection style.
Contact the manufacturer if you can’t verify the correct part.
Don’t use the crib until the required hardware is identified and installed as directed.
Does a crib hardware kit include mattress support parts?
Not necessarily. These picks focus on screws, bolts, barrel nuts and tools; they don’t establish that a mattress support spring or other support component is included.
Check the package contents and the crib maker’s part information separately if you need a support replacement.
